Subfebrile temperature after ARI

Why after ARI the subferinal temperature is kept 37

Colds are a common definition for many uncomplicated respiratory tract infections that can cause sore throats and nasal discharge.

This term is used by people far from medicine. In medicine, this phenomenon is called ARVI. It often happens that the temperature of 37 degrees lasts a few days after a cold? Why is it so?

This temperature is called subfebrile, it can occur after a person has had ARVI.

Most often this phenomenon occurs in an adult, but there are cases of its appearance in children. Why does the temperature appear 37 C, after the acute respiratory viral infection and lasts for several days?

Symptoms and signs of a cold

Independently it can be very difficult to determine which virus caused ARVI. But if you go to a doctor, you can thoroughly identify the symptoms:

• The first and most obvious sign of ARVI is the presence of a common cold. If there is a possibility that the edema was formed as a result of an allergy, then attention should be paid to the accompanying signs of the disease;
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• Pershing and sore throat;
• A small temperature, which is kept at around 37-38 C;
• A few days later, the patient has a runny nose and cough.

The first signs of a cold

Most often, everything starts with a stuffy nose, the first day of discharge from the nose are fluid and transparent. Allocations may be quite abundant, cause sneezing, eyes may blush and an itch in the nose may appear.

After a day from the moment of infection with ARVI, the secret becomes viscous and dense, more dark in color. Do not be afraid of this phenomenon, because it indicates that recovery is approaching.

The body begins to fight intensively with the disease, leukocytes, the main enemies of the virus, die in the nose, giving the mucus from the nose such a color. Do not take antibiotics at this time.

It is important to understand the differences in the allergic reaction and catarrhal disease, because in both cases there may be signs characteristic of ARVI. In this case, the allergic reaction can last a long time without passing after treatment with conventional drugs from ARVI.

That is why it is extremely important to determine exactly what the cause of the deterioration in health is by choosing the right treatment.

Temperature without signs of cold

It happens that the temperature is kept at a high enough level, but no signs of acute respiratory infections are observed. This may indicate the presence of a variety of serious enough diseases that may not have anything to do with viral.

The temperature can be accompanied by various symptoms: weakness, chills, a cut in the eyes, an ache in the body.

The high temperature can be caused by various diseases, not only the ingestion of the virus of the ARVI:

• Bacterial causes, for example, meningitis, tonsillitis, pyelonephritis;
• Infections: HIV, typhoid, tuberculosis;
• Parasitic and fungal lesions: candidiasis, malaria, mononucleosis;
• Oncology: leukemia, lymphomas, tumors;
• Systemic inflammation: lupus, arthritis, rheumatism.

It is for this reason, if there is a high temperature without other accompanying symptoms, this may indicate the presence of serious diseases.

In this case, it is necessary not to hesitate to see a doctor, because only he can conduct the necessary studies, prescribe tests and accurately diagnose. In this case, it is better not to postpone the examination.

The main causes of colds

Talking about the cold, having in mind exactly the ARVI, the only reason for its appearance is the virus, there can not be any other options in this case. At the same time, the virus itself starts life activity not in every cell, but only in the one that could not provide it with the necessary resistance.

It is for this reason, speaking about the indirect factors that can cause the occurrence of colds in humans, we can note the following:

• Colds after hypothermia, especially in hot weather. Sometimes it is enough to eat ice cream, and after a few hours signs of a cold "on the face." Vessels of an unprepared person are not ways to rebuild, actively reacting to temperature changes, this leads to a redness in the throat and the onset of a cold;
• Indirect culprit of cold can also become stress. Many people refer to this reason as unworthy of attention, but in fact everything is far from the case. Nervous overexertion can adversely affect the immune system, which is what provokes frequent colds that bother the person in both summer and winter;
• The acute form of any chronic diseases. It leads to a disruption of the normal balance in the body, leading to a decrease in the immune system. Quite often there are situations when, against the background of diabetes or peptic ulcer, a person often begins to face colds;
• Incorrect nutrition, alcohol consumption, poisoning, smoking - all this has a negative impact on the state of the immune system. Eliminating all the factors described above, you can forget about colds for good.

These circumstances can negatively affect the human body, which leads to the activation of viruses, they begin to attack cells that have no protection. The weaker the immune system, the less the man's strength to resist infections and the more often he encounters colds.

Causes of frequent colds

If an adult is ill with a cold twice a year, then there is nothing to worry about. But if the disease occurs up to five or more times, with subfebrile fever and other complications arises, it indicates that there are serious health problems.

Signs that testify to the weak defenses of the body are manifested in the following:

1. Exacerbations of chronic diseases.
2. Frequent colds.
3. Unmotivated aggression.
4. Excessive fatigue, sleep disturbance, weakness.
5. Failures in the work of the digestive tract.
6. Visible changes in the skin cover: peeling, dryness.

To catarrhal diseases do not occur every two months, it is necessary to make efforts to normalize the immune system. To physiological methods it is possible to rank the right diet, which must include dairy products, protein foods, vitamins, you need to exercise, harden and lead the right schedule.

Pharmacological methods include increasing the body's resistance to viruses, taking natural adaptogens, for example, ginseng and echinacea, as well as homeopathic remedies and prebiotics.

If we talk about immunomodulators, then before they start taking it is necessary to consult with a doctor.

The temperature is kept after a cold at 37 C

Quite often, after suffering a cold, there is a low-febrile temperature, which rests on the 37 C mark. If there was a low-grade fever of 37-37.2 C, you should pay attention to such indicators:

• Whether there are disturbances in general or common state of health;
• Whether there were signs of a cold two or more weeks later;
• Are there any symptoms that indicate complications after a cold?

According to many doctors, after a number of infectious diseases that have occurred in severe form, the subfebrile temperature of 37 C can last for two weeks. If there is such a low-grade fever, then it is recommended to adhere to this regime of the day, while excluding the use of medications:

1. If possible, it is recommended to spend more time at home, try to rest, do not eat fatty foods and try to consume as much liquid as possible.
2. If you must necessarily go to work, then you must avoid excessive physical exertion, as this can negatively affect the operation of blood vessels and the heart.
3. You can maintain the body with various decoctions and herbal teas.

Such methods will be effective if there is a subfebrile temperature not exceeding 37-37.2 C, while there is no general disturbance of the state. In this case it is important to know how to determine the body temperature without a thermometer. If the state of health worsens, it is necessary to urgently consult a doctor, to conduct an examination and make the correct diagnosis, with the purpose of effective treatment.

As a rule, in this case, a general blood test is appointed, which is considered the most informative. With its help, you can identify, and also prevent a possible onset of complications in the body.

Catarrhal diseases are found in all people. Symptomatology can be expressed to a greater or lesser degree, but in any case for SARS remains characteristic: sore throat, runny nose and a slight increase in temperature. The reason that can cause disease is a virus that gets into the human body.

It is necessary to understand that under the mask of a simple ARVI, something else, a terrible disease, for example, the flu, can hide. For this reason it is extremely important to know what symptoms accompany SARS. Against the background of immunity, weakened by a number of factors, colds can occur much more often than in ordinary people.

Such a condition can cause complications, which may require medical care. Realizing what happens in the human body during the cold, it is always possible to give him timely help, increasing the chances of fighting the infection. In this case, the main timely treatment and compliance with certain rules that make it easier to feel. All you need to know about temperature is in the video in this article.

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Why the temperature is kept 3, -3 causes subfebrile temperature

The subfebrile condition is a rise in temperature from 37 to 3 degrees Celsius. Body temperature above 38 degrees is usually accompanied by very specific symptoms that any physician can tie to a particular disease. But the long subfebrile condition often remains the only sign that causes the patient to visit many experts and take many tests.

Why does the body need a subfebrile temperature?

Man is a warm-blooded being, so we are able to maintain a more or less stable body temperature throughout life. Oscillations within 1 degree may occur with stress, after eating, during sleep, and also depending on the woman's menstrual cycle. At influence of some factors the defensive reaction of an organism - a fever can arise. Even subfebrile temperature figures allow to accelerate metabolism and make it impossible to multiply many harmful microbes. In addition, the temperature rise can speak of bodily or psychological ill health.

Normal body temperature of a person

The average temperature for measurement in the armpit is 3, degrees Celsius. But for different people this value can be individual. Someone's thermometer rarely shows a value greater than 3, and somebody constantly lives with figures of 37-3 degrees. However, in most cases, subfebrile temperature indicates a slow inflammatory process in the body, so you should find out the cause of subfibrillity and find the focus of inflammation.

The upper limit of the norm of human temperature 3 all that is higher, can be considered as a slow inflammatory process and requires careful diagnosis. In a child under one year, the temperature of 3, - 3 is normal because of the unsteady thermoregulation system.

However, it is necessary to take into account in what state the measurement takes place. If, for example, to measure the temperature of a person who is overheated in the sun or dressed in a woolen sweater, or if the patient has hyperthyroidism, a violation of thermoregulation - this should be taken into account.

How correctly to measure temperature?

There are several parts of the body where the temperature is usually measured. The most frequent are the rectum and axillary cavities. In the rectum, the temperature is usually taken for children, such data are more accurate, although some babies actively resist this procedure. And the subfebrile condition in infants is not at all an excuse to torment the child with rectal measurements. The classical version of thermometry in adults is in the armpit.

Temperature standards:

• axillary cavity: 3, C - 3, C
• rectum: 3, C - 3, C
• in the oral cavity: 3, C - 3, C

Causes of subfebrile condition

Infectious causes Common viral and bacterial acute infections Chronic inflammatory foci (in the oral cavity, digestive organs, urogenital) Tuberculosis (both lung and extrapulmonary forms) HIV infection Viral hepatitis	Diseases of an autoimmune character Crohn's disease nonspecific ulcerative colitis Bechterew's disease rheumatism
Non-infectious causes Tumors (see Fig. analyzes for oncology) Diseases of the thyroid gland and other endocrine organs Diseases of the blood (anemia)	"Tail" after a viral infection Psychogenic causes Drug subfebrile condition

Infectious causes

The most frequent cause for subfebrile temperature is infection. So, most banal ARVI is accompanied by malaise, headache and joint pain, runny nose, cough and subfebrile condition. Some children's infections (rubella, chicken pox) are not very heavy, with low temperatures. In all these cases, there are bright signs of the disease.

With the prolonged existence of the focus of inflammation, all the symptoms are erased or become familiar. Therefore, the only sign of trouble remains a long subfebrile condition. In such cases, finding the source of infection is not easy.

Foci of infection, most often causing a prolonged temperature rise:

• ENT diseases - tonsillitis, sinusitis, otitis media, pharyngitis, etc.
• Dental - carious teeth
• Diseases of the gastrointestinal tract - gastritis, colitis (inflammation of the intestine), pancreatitis, cholecystitis, etc.
• Inflammation of the urinary tract - pyelonephritis, urethritis, cystitis, etc.
• Inflammatory diseases of female and male genital organs - inflammation of appendages, prostatitis.
• Abscesses in jabs
• Non-healing ulcers in the elderly and sick with diabetes mellitus

To identify sluggish infection, the doctor will appoint:

• General analysis of blood and urine. Deviations in some indicators may indicate an inflammatory process in the body. For example, a change in the leukocyte formula and an increase in ESR.
• Inspection by narrow specialists: ENT doctor, gastroenterologist, surgeon, dentist, gynecologist
• Additional methods: CT, X-ray, ultrasound in case of suspected inflammation in a particular organ.

If the source of inflammation is found, then it will take some time to heal, as chronic infections are worse treated.

Rarely diagnosed infections

Toxoplasmosis

Very common infection, but clinical manifestations are rare (see. symptoms of toxoplasmosis in humans). Almost all lovers of cats are infected with it. In addition, you can get infected with poorly-roasted meat.

Clinically significant is only toxoplasmosis in pregnancy (due to the risk of pathology in the fetus) and HIV-infected (due to the severity of leakage). In a healthy person, toxoplasmosis is present as a carrier, sometimes causing subfebrile temperature and eye damage.

Treatment of infection does not require (except for severe cases). Diagnose it with the help of ELISA (definition of antibodies), which is especially important when planning pregnancy.

Brucellosis

This is a disease that is often overlooked in the search for the causes of subfebrile. It is mainly found in farmers and veterinarians in contact with farm animals (cf. brucellosis in humans). Symptoms of the disease are diverse:

• fever
• joint, muscle and headache
• decreased hearing and vision
• confusion

This disease is not dangerous to life, but can lead to a persistent change in the psyche and the motor sphere. For diagnosis, PCR is used, which determines the source of the disease in the blood with high accuracy. Brucellosis is treated with antibiotics.

Parasitic infections

When helminths are infected with the organs, a flaccid inflammatory process may last for a long time. And often the subfebrile condition is the only symptom of helminthic invasion (see Fig. signs of worms in humans). Therefore, with a long fever, especially combined with weight loss and digestive disorders, you can take tests:

• General analysis of blood for eosinophils - cells that grow when an allergic reaction to helminths
• ESR - a sign of inflammation in the body
• analysis of feces for eggs worm (the most common in a particular region, pinworm in a child, symptoms of ascaridosis)

Treatment of helminthic invasion is carried out by special preparations (see. tablets from worms). Sometimes it is enough to have one reception for a full recovery.

Tuberculosis

There is an erroneous opinion that tuberculosis is a disease of the past, it is now found only in places of deprivation of liberty and only antisocial persons are ill. In fact, the number of TB patients does not decrease, but even increases. Everyone is at risk of getting sick, especially small children, medical workers, students in dormitories, soldiers in barracks. In general, the tubercle bacillus likes places with a large accumulation of people permanently living under the same roof.

Risk factors:

• inadequate and unbalanced nutrition
• chronic pulmonary diseases
• diabetes
• living with a source of tuberculosis
• tuberculosis in the past

Tuberculosis is a bacterial infection that affects mainly the lungs. In this case, the annual Mantoux test in children and fluorography in adults allows you to suspect and cure the disease on time.

If other organs are involved in the process, then in case of a "pure" X-ray of the lungs, the cause of the ailment can be found extremely difficult, because the tuberculosis lesions of internal organs are perfectly masked for non-specific inflammatory processes. Until now, the diagnosis of extrapulmonary forms is extremely difficult and also when the diagnosis is differentiated, it is often "forgotten" about this infection.

Signs of tuberculosis:

Are common: high fatigue, reduced efficiency a subfebrile condition in the evenings excessive sweating and insomnia at night loss of appetite weight loss (until exhaustion)	Urinary system: high pressure back pain blood in the urine
Pulmonary forms: cough hemoptysis shortness of breath, chest pain	Genital tuberculosis: persistent primary infertility menstrual disorder postpartum acute inflammation of female genital organs salpingitis, prostatitis
Bony and articular forms: pain in the spine change of posture limited movement painful, swollen joints	Skin and eye forms: persistent rashes on the skin small confluent skin nodules Inflammation of the eyes

To identify the disease, you need to undergo a chest examination (fluorography), conduct tuberculin tests (Mantoux), Diascintest; if necessary - computed tomography of internal organs, radiography of kidneys, GHA of uterine pipes, etc.

Diagnosis of tuberculosis:

Mantoux test - intradermal injection of a special protein from the destroyed shell of the bacterium (tuberculin). This protein can not cause the disease, but in response to it there is a skin reaction, according to which the test is evaluated. Probation Mantou most children spend 1 time per year.

• In children under 5 years of age, the reaction should be positive (papules from 5 to 15 mm). If the reaction is negative, it means that the child has a congenital immunity to the disease or has received a low-quality BCG vaccine (or not at all). With a papule more than 15 mm, an additional examination is necessary.
• If the reaction in comparison with the previous one has increased sharply (more than 6 mm in comparison with the previous one), then this is considered a bend. That is, the child was infected with mycobacterium tuberculosis. Such children are likely to get this infection. Therefore, after an additional examination, the child is prescribed preventive doses of anti-tuberculosis drugs.

It is important to know:

• The site of the injection can be moistened, this does not affect the size of the papule.
• sweet and citrus fruits are possible - this does not affect the size of the papule, if the child does not suffer from a pronounced allergy to these foods.
• Mantoux test is not capable of causing tuberculosis
• Diaskintest - a test similar to Mantoux, but giving out a greater percentage of accuracy. Reaction to intradermal administration is also checked after 72 hours. The results of the test are not affected by BCG vaccination. Therefore, the positive result of the test is almost 100% infection with mycobacterium tuberculosis and the development of the disease. However, when infected with bovine type mycobacteria (unboiled milk, contact with a sick cow, a cat, a dog, etc.), and also when complication of BCG vaccination (extremely rare, but there are complications in the type of persistent or disseminated BCG infection, when vaccination the strain is "activated" in weakened children), Diaskintest remains negative, and does not give 100% exclusion of tuberculosis of bovine type or activation inoculations of BCG.

The treatment of tuberculosis is a long, hard-to-bear, but still vital. Without therapy, tuberculosis slowly disables the person and leads to death. In time, the BCG vaccine protects young children from severe lethal forms of the disease, but to Unfortunately, it does not protect against the disease either children or adults with prolonged contact with the patient active form. Modern drugs can cure foci of infection, but in recent decades, the number of drug-resistant forms that are difficult to treat has been increasing.

HIV infection

The human immunodeficiency virus attacks the body's defense system, making it immune to any, even the slightest infection. Infection with the virus occurs in the following ways (see as transmitted by HIV):

• with unprotected sex
• when injected with contaminated syringes
• with blood transfusions
• at manipulations in a cabinet of the stomatologist, the cosmetician
• from mother to fetus

Since a large number of virus particles are necessary for infection, it is impossible to get HIV infection from coughing, sneezing or touching a sick person.

Symptoms of HIV infection:

During the incubation period (1-6 months from infection), there are no subjective symptoms.
In an acute period, complaints may appear:

• Subfebrile or high fever
• Enlargement of lymph nodes
• Rashes of various types
• Headache, nausea and vomiting
• Pain in muscles and joints

A latent period without obvious symptoms, but with active reproduction of the virus in the blood. Can last up to 20 years.
AIDS-associated complex (illnesses that often occur and are difficult for AIDS):

• Candidiasis (thrush in the mouth)
• Leukoplakia in the mouth (change in mucous membrane)
• Herpes with multiple relapses
• Pneumocystis pneumonia (not susceptible to standard antibiotics)
• Tuberculosis
• Subfebrile, weight loss
• Inflammation of the parotid glands
• Molluscum contagiosum
• Dysplasia and cervical cancer
• Kaposi's Sarcoma
• Toxoplasmosis of the brain
• Other inflammatory diseases

Diagnosis of HIV infection:

• ELISA (enzyme immunoassay). This is the first stage of the survey, which is carried out at the request of many employers. With the above symptoms, this method alone is not enough. Most of the infected antibodies to the virus appear after 3 months, some have a positive result only after 6-9 months. Therefore, it is recommended to conduct a study twice: after 3 and 6 months from possible infection.
• PCR (polymerase chain reaction). Very effective method, which allows to detect virus particles within 2 weeks after infection.
• methods for determining viral load and immune suppression. Additional methods used with a confirmed diagnosis.

With the final diagnosis of HIV infection, antiretroviral treatment should be initiated. It will allow to delay the emergence of AIDS as much as possible, to alleviate the already existing symptoms and significantly prolong the life of the patient.

Viral hepatitis B and C

One of the causes of intoxication and, as a consequence, subfebrile temperature, are hepatitis of a viral nature. These diseases begin in different ways: some are acutely, with pain in the hypochondrium, jaundice, high fever. Some practically do not feel the onset of the disease (cf. hepatitis C how many live with it)

Signs of slow viral hepatitis:

• malaise
• a subfebrile condition, a sweating
• discomfort in the liver after eating
• light, almost imperceptible jaundice (see Fig. symptoms of jaundice)
• joint and muscle pains

Since a large percentage of viral hepatitis passes into a chronic form, the subfebrile condition may return with each exacerbation.

Ways of transmission of viral hepatitis:

• sex
• medical instruments
• blood transfusions
• instruments in manicure and dental offices
• needles of syringes
• from mother to fetus

Diagnosis of viral hepatitis:

• PCR - a method with high accuracy, determines the particles of viruses in the blood
• ELISA is a method to detect antibodies to various components of the virus. With it, you can determine the carrier, the active form of the disease, the risks of infection of the fetus. It is also possible to distinguish between acute and chronic hepatitis.

Treatment of acute hepatitis of viral origin is not carried out. Concomitant complications are usually treated. Treatment of chronic hepatitis during the exacerbation is carried out by antiviral special drugs, hepatoprotectors, cholagogue. Chronic process in the liver can lead to cirrhosis and cancer, so all patients with hepatitis should be examined regularly by a specialist.

Tumors

With the development of a malignant tumor in the body, all organ systems begin to work differently. The metabolism also changes. As a result, there are paraneoplastic syndromes, including subfebrile. Suspect the tumor can be after eliminating more obvious causes (infection, anemia). Malignant neoplasm during disintegration throws out pyrogens into the blood - substances that raise the temperature. Often, on the background of a tumor, infections become worse, which also causes fever.

Features of paraneoplastic syndromes:

• poorly amenable to the standard for this indication of therapy
• often recur
• decrease in the treatment of the underlying disease (tumor)

Frequent paraneoplastic syndromes:

Fever, poorly treatable antipyretic and anti-inflammatory drugs.
Cutaneous manifestations:

• Black acanthosis (with cancer of the digestive system, breast and ovaries)
• Erythema Darya (with stomach cancer and breast cancer)
• Skin itching without rash and obvious causes

Endocrine signs:

• Cushing's syndrome (excess production of ACTH - the hormone of the adrenal glands) - with lung cancer, pancreatic, thyroid or prostate cancer
• Gynecomastia (breast augmentation in men) - with lung cancer
• Hypoglycemia (low glucose) - with lung cancer, digestive system

Changes in blood:

• Anemia (with tumors of different localization). By itself, anemia also leads to a long subfebrile condition.
• Increased ESR (over 30) for a long time

It should be noted that not all cancer patients have obvious paraneoplastic syndromes. And not all the above signs necessarily indicate a tumor. Therefore, when a subfebrile condition of unclear etiology, especially in combination with other paraneoplastic symptoms, requires a thorough examination.

Diseases of the thyroid gland

With increased thyroid function (hyperthyroidism), all metabolic processes are sharply accelerated. This immediately affects the body temperature. In patients with thyrotoxicosis, the thermometer rarely shows less than 3 degrees.

Symptoms of thyrotoxicosis:

• subfebrile condition
• irritability
• frequent pulse, high blood pressure
• loose stools
• losing weight
• hair loss

For the diagnosis of thyrotoxicosis, ultrasound of the thyroid gland should be made and blood donated to hormones: T3, T4, TTG and antibodies to TSH. Based on the results of the tests, the doctor will prescribe the appropriate treatment.

Anemia, as an independent disease or a component of other diseases

Anemia is a decrease in hemoglobin. This condition occurs for various reasons, ranging from chronic bleeding (with hemorrhoids, for example), ending with a violation of iron absorption (with diseases of the gastrointestinal tract). It is iron deficiency in most cases that causes this condition. Often anemia occurs in women with heavy menstruation and vegetarians who abandoned animal products.

The lower limits of the norm of hemoglobin:

• Men: from 20 to 59 years: 137 g / l, from 60 years: 132 g / l
• Females: 122 g / l

In some cases, the hemoglobin level may be normal, but the iron content in the blood is sharply reduced. This condition is called latent iron deficiency.

Signs of anemia and latent iron deficiency:

• unmotivated subfebrile condition
• cold hands and feet
• a decline in strength and reduced efficiency
• frequent headaches and dizziness
• bad hair and nails (see. causes of hair loss)
• drowsiness during the day
• aversion to meat products and propensity to eat inedible
• skin itching, dry skin
• stomatitis, glossitis (inflammation of the tongue)
• poor tolerance of hot rooms
• unstable stool, incontinence

The more of the above signs, the higher the likelihood of iron deficiency in the body. To confirm the diagnosis, the following tests are necessary:

• Blood test for hemoglobin
• Ferritin level
• If necessary - examination of the digestive system

If iron deficiency is confirmed, then it is necessary to start treatment with ferrous iron preparations. These are Sorbifer, Tardiferon, Ferretab (see Fig. iron preparations for anemia). All iron preparations should be taken together with ascorbic acid, for at least 3-4 months.

Autoimmune diseases

With autoimmune diseases, the body begins to attack itself. Immunity is tuned against the cells of certain organs and tissues, causing chronic inflammation with periods of exacerbation. Against this background, the body temperature also changes.

The most common autoimmune diseases:

• Rheumatoid arthritis
• Thyroiditis Hashimoto (thyroid damage)
• Systemic lupus erythematosus
• Crohn's disease (bowel disease)
• Diffuse toxic goiter
• Sjogren's Syndrome

To diagnose autoimmune conditions, the following tests are needed:

• The sedimentation rate of erythrocytes (ESR) is an indicator whose increase indicates an inflammatory reaction
• C-reactive protein - a parameter in the biochemical analysis of blood, speaks of inflammation
• Rheumatoid factor (increases with rheumatoid arthritis, vasculitis, other autoimmune processes)
• LE cells (for diagnosis of systemic lupus erythematosus)
• additional survey methods

With a proven diagnosis, you need to start treatment. It includes hormonal drugs, anti-inflammatory, immunosuppressants. Therapy allows you to control the disease and reduce the risk of exacerbations.

Residual effects after illness

All people at least once in their lives suffer from acute respiratory viral infection, influenza-acute respiratory viral infection. Often the main symptoms do not stay longer than a week: cough, runny nose, fever and headache. And here a subfebrile condition can be saved some months after the transferred or carried illness or disease. It is not necessary to treat such a condition, it will pass by itself. It is possible to strengthen health by dosed physical exertion and walking in the open air (cf. how to recover from the flu).

Psychogenic causes

Subfebrile is the manifestation of accelerated metabolism. It, as well as all processes in the body, is influenced by our psyche. Under stresses, experiences and neuroses, it is metabolic processes that are violated in the first place. Therefore, people with subtle emotional organization, especially in young women prone to hypochondria, often have unmotivated subfebrile fever. And the more active the temperature measurements, the worse a person feels. To diagnose this condition, you can take tests to assess psychological stability:

• Questionnaire for detecting panic attacks
• Hospital scale of depression and anxiety
• Bek scale
• Individual-typological questionnaire
• Toronto alexithymic scale
• Scale of emotional excitability

By results of these tests it is possible to draw conclusions and if necessary to address to the psychotherapist (not forgetting to grasp these results with itself). Treatment of this condition can be reduced to sessions of psychotherapy and the use of antidepressants or tranquilizers, sedatives. Often, all unpleasant symptoms go away when a person realizes the baselessness of fears and ceases to measure temperature.

Drug subfebrile condition

Prolonged or active use of certain drugs can cause a rise in temperature to subfebrile digits. These funds include:

• adrenaline, ephedrine, norepinephrine
• atropine, some antidepressants, antihistamines and anti-Parkinsonian drugs
• antipsychotics
• antibiotics (penicillin, ampicillin, isoniazid, lincomycin)
• chemotherapy for tumors
• narcotic painkillers
• preparations of thyroxine (thyroid hormone)

Cancellation or replacement of therapy relieves of unpleasant subfebrile condition.

Subfebrile in children

The reasons for subfebrile temperature in a child are absolutely the same as in adults. But parents should remember that the temperature to 3, degrees in a child up to a year is considered normal and does not require antipyretics and the search for reasons. Therefore, if the baby feels well, is active, cheerful and does not suffer from a lack of appetite, then it is not necessary to treat subfebrile condition. However, if the child is older than a year of long subfebrile condition, lack of appetite, weakness - the cause should be established.

How to find the reason of a subfebrile condition?

To exclude dangerous and even fatal variants, it is necessary to pass examination at experts.

Algorithm of examination at subfebrile temperature:

• Determination of the nature of the fever: infectious or non-infectious
• General blood analysis
• General urine analysis
• Analysis of feces for helminths
• Biochemistry of blood: the definition of a c-reactive protein
• X-ray of chest organs (for the exclusion of tuberculosis, endocarditis, lung cancer)
• X-ray or CT of the nasal sinuses (to exclude sinusitis)
• Ultrasound of the heart, digestive system
• Bacteriological culture of urine (to exclude inflammation in the urinary system)
• Trials with tuberculin, dyskintest (to exclude tuberculosis)

Additionally:

• Using additional methods to exclude HIV, brucellosis, viral hepatitis, toxoplasmosis
• Consultation phthisiatrician for uncertain tuberculin tests, night sweats, weight loss
• Consultation of an oncologist and hematologist (for the exclusion of tumors and blood diseases)
• Consultation of rheumatologist
• Consultation of the psychotherapist

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How much does the temperature last for ARVI?

Often, getting a respiratory disease, people do not rush to go to the doctor, because you can buy any effective medication at the drugstore and get treatment at home. But in such cases it is important to know the characteristic symptoms of the disease so as not to confuse it with anything else. For example, you should pay attention to how much the temperature is maintained in ARVI, what is its value, whether there are lesions of the mucous membranes of the respiratory tract.

How many days and what is the temperature for ARVI?

The incubation period of a viral disease is no more than 5 days, and at this time a person can feel completely normal until pathological cells have penetrated into the blood and caused intoxication. With the development of the disease, reproduction of bacteria begins, as a rule, in the maxillary sinuses, lungs, mouth and bronchi. This is accompanied by a sore throat, an uncomfortable sensation in the nose, a mild headache. Over time, clinical manifestations of intoxication with the virus, one of which is an increase in body temperature, are added.

It should be understood that fever or fever is a normal mechanism of immune system reaction to foreign cells in the blood. Most viruses and bacteria die at high temperatures, so the body thus protects itself from the spread of infection.

Intoxication syndrome occurs usually on day 2-3 after the onset of the disease. The heat can reach quite high values ​​(up to 39 degrees), but the process of activation of immunity under consideration is short. With adequate treatment and timely measures taken, the temperature decreases after 1-2 days, reaching normal values. It is worth noting that eliminating the fever with numbers on the thermometer to 3, it is undesirable to allow the body to fight the infection on its own.

During further therapy with ARVI, low temperature, up to 37 degrees. This is due to the fact that the patient's blood is saturated with antibodies that do not allow the emergence and progress of inflammatory processes.

After ARI, there is a low-grade fever 37

Cases of complications after a flu are frequent. They are characterized by the presence of symptoms of acute respiratory diseases (bronchitis, otitis, pneumonia, frontal sinus, sinusitis) and the constant presence of slightly elevated body temperature: 37-3,.

Similar signs together with a poor state of health of the patient, as well as an increase in lymph nodes, can to signal the development of severe health effects or recurrence of chronic upper respiratory diseases ways.

If the subfebrile temperature does not decrease within a week after recovery, it is mandatory consult a therapist, do x-ray examinations and donate blood for laboratory tests. analyzes.

Repeated fever in ARVI

Another no less dangerous situation is the re-infection with the virus. It can occur either from family members (neighbors

for an apartment, a room), which became carriers of ARVI in the care of a patient, or due to self-poisoning due to non-compliance with hygiene and disinfection of air in the living quarters.

Repeated increase in body temperature to high values ​​suggests that the body resumed inflammatory processes, and the rapid rapid spread of the virus in the blood began. The problem is the possibility of the emergence of resistance of viruses and bacteria to the previous treatment, and the medications used will cease to have an effect, so the therapy scheme will change.

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Low-grade fever

What does subfebrile temperature mean? The Latin prefix sub has the meanings: "under, about" (remember words such as a submarine, offal or subtropics). A febris in Latin means "fever". So literally subfebrile temperature is defined as "near fever".

The human body temperature is a complex indicator of the thermal, that is, the thermal state of the body. The mechanism of our heat regulation is "automatically" adjusted to a normal value of +3, ° C and allows its physiological changes within plus or minus -1 ° С. The overall temperature range is 36-39 ° C. When the thermometer's column rises to + 38-39 ° C, physicians talk about febrile temperature, and above + 39 ° C - about pyretic. And what is the subfebrile temperature?

The classical subfebrile body temperature is + 37-3, ° C, but experts point to a higher figure of -3, -38 ° C. So it is quite justified subfebrile temperature of 37 degrees and up to + 38 ° C by the majority of domestic doctors is recognized as "near feverish and their Western colleagues consider that the temperature is 9, -10, ° F or 3, -3, ° C.

Causes of low-grade fever

The causes of low-grade fever, as well as febrile and pyretic, are associated with changes in the limbic-hypothalamic-reticular system of the body. Simply put, the temperature is regulated in the hypothalamus, which works as a thermostat. Endogenous or exogenous pyrogens cause the release of prostaglandins (inflammatory mediators), and they act on the neurons responsible for thermoregulation, which are located in the hypothalamus. And the hypothalamus generates a systemic response, and as a result, the body is given a new level of temperature.

At what diseases does subfebrile temperature occur within a certain time? The list of such diseases is very extensive and includes:

• infectious diseases - influenza, SARS, tuberculosis, typhoid, brucellosis, malaria, ornithosis, mononucleosis, Epstein-Barr herpesvirus, cytomegalovirus, rotavirus gastroenteritis and gastroenterocolitis, tick-borne borreliosis (Lyme disease), HIV, urogenital infections and etc.;
• parasitic diseases (helminthic invasions, giardiasis, leishmaniasis, toxoplasmosis);
• Sluggish inflammatory processes with chronic rhinitis, sinusitis, sinusitis or tonsillitis; with inflammation of soft tissues (boils, abscesses); with focal pneumonia and lung abscess; with chronic cholecystitis, pancreatitis, cystitis, prostatitis, pyelonephritis, etc .;
• dysfunction of the thyroid gland (initial stages of hyperthyroidism, hypothyroidism, thyrotoxicosis);
• systemic immunological diseases - systemic lupus erythematosus, sarcoidosis, giant cell temporal arteritis (disease Horton), rheumatoid arthritis, granulomatous enteritis (Crohn's disease), Wegener's granulomatosis, Bechterew's disease, syndrome Szegrena;
• necrosis of tissues, which can occur as a result of destruction of red blood cells (hemolysis) at cerebral hemorrhage, myocardial infarction, after surgery, with compression syndrome and etc .;
• allergic reactions of various etiologies;
• metabolic disorders (gout, porphyria, etc.);
• thromboembolic processes (deep vein thrombosis, pulmonary embolism, etc.).

Symptoms of low-grade fever

Subfebrile body temperature accompanies a number of diseases, sometimes being, in fact, their only symptom, fixed at the initial stage of development. In addition to high temperature, this condition can not show any other signs, which is a potential health hazard.

So the key signs of subfebrile temperature are periodic or permanent (permanent), short-term or long-term increase in temperature indicators to + 37-38 ° C.

Subfebrile temperature as a symptom

Subfebrile temperature is a sign of one or another pathology. Subfebrile temperature and cough, low-grade fever and headache, as well as weakness and subfebrile temperature are typical symptoms not only of acute respiratory viral infection or influenza, but also of focal pneumonia and tuberculosis lungs. In particular, with focal or infiltrative tuberculosis, subfebrile temperature is observed in the evenings, which rises by 3-4 hours to +3, -3, ° C.

Often, low-grade fever after ARI is the result of incomplete recovery, weakened immunity or the effect of medications.

In most cases, low-grade fever with bronchitis does not rise above +3, ° C, approximately in the same range holds subfebrile temperature after pneumonia. Often doctors can not determine the exact cause of this phenomenon and call it postinfectional subfebrile condition.

The characteristic subfebrile temperature in tonsillitis is 37-3, ° C, and the subfebrile temperature after angina may remain at the same level within one to two weeks. Longer subfebrile condition should alert, in fact, as is known, tonsillitis quickly becomes chronic decompensated, and streptococcal infection at frequent angina has a pathological effect by intoxicating the heart tissue, causing infective endocarditis, and affecting the kidneys, leading to glomerulonephritis.

The subfebrile temperature in cystitis, along with other symptoms of this disease, passes after appropriate drug therapy. However, when the subfebrile temperature is kept to 3, -3, ° C after the end of treatment, then there are good reasons to assume that the inflammation from the bladder went to the kidneys and threatens pyelonephritis.

The subfebrile temperature after tooth extraction, as well as the subfebrile temperature after surgery performed on any tissues and organs, can have a separate list of reasons, among which in the first place - the body's reaction to the damaging factor and infection (for example, infectious infection of the blood - pyemia). Their contribution is made by drugs taken both before and after the surgical intervention.

Subfebrile temperature in oncology is most often observed with myelo- and lymphocytic leukemia, lymphomas, lymphosarcoma and cancerous kidney damage. As oncologists note, a long subfebrile temperature - for half a year and even more - is one of the symptoms of the early stages of these diseases. Also for oncological patients after radiation and chemotherapy, neutropenic subfebrile condition is associated with the weakening of the immune system.

Nausea and subfebrile temperature of the gastroenterologist will suggest an intestinal dysbiosis. And here subfebrile temperature at night usually drops down to physiologically normal level or hardly below, although it can hold, for example, with latent herpesvirus infection, inflammation of the bile ducts or hepatitis C.

It should be borne in mind that a constant low-grade fever, which remains above the norm in throughout the day and fluctuates during the day more than one degree - a symptom of an infectious endocarditis. The long subfebrile temperature, which manifests itself every 24-48 hours is a typical manifestation of a malarial plasmodium.

The human immunodeficiency virus is slow, so the subfebrile temperature for HIV, with absence of other signs in the carriers of this infection is an indicator of total decrease protective forces. The next stage can be the defeat of the body by any infection with the development of a variety of immune-mediated diseases.

Subfebrile temperature with IRR

Thermoregulation of the body - as the activity of all internal organs, secretory glands and blood vessels - is coordinated The autonomic nervous system, which ensures the stability of the internal environment and adaptive reactions organism. Therefore, violations in her work can manifest as a subfebrile temperature with VSD, i.e., vegetative-vascular dystonia.

In addition to spontaneous daytime temperature rise to 37-3, ° C, there may be such neurocirculatory disorders as changes in blood pressure and pulse rate, decreased muscle tone, as well as hyperhidrosis (increased sweating).

Depending on the cause of GVA, clinical vascular dystonia is distinguished in clinical medicine by genetic, infectious-allergic, traumatic and psychogenic.

Until recently, the rise in temperature under such conditions, that is, without an obvious cause, was defined as a subfebrile temperature of an unclear etiology. Now it is already known that there is a violation of the process of thermoregulation due to the diencephalic syndrome - congenital or acquired dysfunction of the hypothalamus (our main "Thermostat").

Congenital causes of this pathology include functional somatic disorders of the VSD type, and among the acquired ones appear violation of the circulation of the brain in the area of ​​the hypothalamus, craniocerebral trauma, encephalitis, intoxication, etc.

Anemia and low-grade fever

Anemia and subfebrile temperature are closely related to each other at the biochemical level. Iron deficiency anemia leads to a disruption in the production of hemoglobin and a decrease in its content in erythrocytes, which carry oxygen to the tapholes. And with a lack of oxygen in all cells of the body and, in the first place, the brain is disrupted metabolism. Therefore - in addition to all other signs of iron deficiency in the body - there is often a slight increase in body temperature. The most prone to iron deficiency anemia are children and adolescents during puberty. In addition to the subfebrile condition, they often have colds, and appetite and weight can decrease.

In addition, poor assimilation of iron is associated with a lack of vitamin B9 (folic acid) and vitamin B12 (cyanocobalamin), which regulate the synthesis of hemoglobin in the bone marrow. And this anemia is called pernicious.

Precision anemia and low-grade fever - if they do not pay attention - can lead to inflammation and atrophy of the gastrointestinal mucosa.

Low-grade fever in women

Subfebrile temperature before menstruation in women refers to physiological periodic changes in thermoregulation (limits, degrees) and is associated with increased intake of estrogen and estradiol and the products of their metabolism into the blood: hydroxyestrones, etiocholanolone, methoxy estradiol and etc.

The low-grade temperature during pregnancy (up to +3, ° С) can be observed at early terms, in the first 12 weeks - due to an increase in the level of progesterone produced by the yellow body of the ovaries and its effect on hypothalamus. Later, the temperature values ​​are normalized.

However, an insignificant but constant low-grade fever in pregnant women is quite possible with manifestation on the background of a natural decrease in immunity lubricated symptoms of so-called TORCH infections: toxoplasmosis, hepatitis B, varicella-zoster virus, rubella, cytomegalovirus and virus herpes. Since all these infections can cause congenital fetal diseases, it is important to be vigilant at subfebrile temperature and take a blood test for TORCH infection.

And, at last, subfebrile temperature in women very often happens during menopause, and it is connected again with changes in their hormonal background.

Subfebrile temperature in a child

Detected in childhood, thermoregulation disorders in at least 2% of cases are congenital diencephalic syndrome, that is, problems with the hypothalamus, discussed above.

Subfebrile temperature in a child often accompanies infections of the upper respiratory tract, nasopharynx and ears. So, subfebrile temperature and cough can be with ARVI, chronic tonsillitis, bronchitis, pneumonia. The temperature is given by teething and grafting. To provoke a subfebrile condition physical activity, strong excitement, an overheat at wearing of heavy clothes, an anemia, etc. can.

Subfebrile temperature in adolescents is related to the period of sexual development, but possible pathologies can not be ignored. In addition to those listed above (cf. section Causes of subfebrile temperature), pediatricians pay special attention to pediatric and adolescent thermoneurosis, which is caused by diencephalic syndrome, malignant blood diseases, pathologies of the thyroid gland, as well as autoimmune diseases. For example, in children under the age of 16, Styl's disease or systemic juvenile idiopathic arthritis can develop, for which weakness and subfebrile temperature are characteristic.

It can also be a by-product of prolonged use of certain medications, for example, atropine, diuretic, anticonvulsant, antipsychotic and antibacterial. Thus, the subfebrile temperature for antibiotics is due to the fact that their use erases the symptoms of certain diseases, and then there is only one symptom - an increase in the thermometer readings.

What's bothering you?

Body temperature

Analyzes at subfebrile temperature

Doctors recognize the fact that setting the right diagnosis at subfebrile temperature is not an easy task. Therefore, it is necessary to pass all the tests at subfebrile temperature:

• general blood analysis;
• blood tests for RW, HIV, viral hepatitis B and C;
• blood test for TORCH infection;
• blood test for rheumatoid factor;
• a blood test for thyroid hormones;
• blood test for oncomarkers;
• general urine analysis;
• sputum culture for tuberculosis.

In addition to testing, x-ray or ultrasound can be used.

What tests are needed?

General blood test Urinalysis Tuberculosis: detection of mycobacterium tuberculosis Tuberculosis: antibodies to the causative agent of tuberculosis in the blood Study oncomarkers Syphilis analysis HIV / AIDS test Rheumatoid factor in the blood Hepatitis B analysis: HBSAg in the blood Hepatitis C analysis: antibodies to HCV in blood serum

Who to contact?

Phthisiatrician Family doctor General practitioner Infectionist

Treatment of low-grade fever

How to bring down the low-febrile temperature? For your information, in this situation only an incompetent medical worker immediately - without examination - will prescribe a fever-reducing medication. And alone to drink tablets of aspirin, acetaminophen or ibuprofen, too, is not necessary, especially in cases where the subfebrile temperature is 2 months or the subfebrile temperature lasts more than a year, or even longer.

What should I do if I have low-grade fever? Seek medical help from intelligent doctors. If other symptoms are absent and there are no complaints of worsening of well-being, then treatment of subfebrile temperature is not required. Therapy of these conditions is extremely difficult, especially when doctors diagnose subfebrile temperature of unclear etiology.

A hundred years ago for the subfebrile condition used the old name - "general malaise where it was recommended to eat better, walk more outdoors and not be nervous. And what do you think, it helped a lot ...

Today it is necessary to conduct etiologic treatment of subfebrile temperature, and how it will be depends on the pathogenesis of the disease.

If the subfebrile temperature appears frequently or is constant, if it causes you anxiety (especially when "nothing hurts anywhere"), consult a doctor.

If your subfebrile temperature lasts for a long time, the immunity is weakened or there are chronic diseases - consult a doctor without delay.

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Subfebrile temperature - causes

When a person's fever rises, it means that there is inflammation in the body - that's what most people think. However, not always the inflammation becomes the reason of a subfebrile condition - also in it the hypothalamus, a hypophysis and vegetative nervous system can be guilty.

Causes of low-grade fever in women

The female body undergoes a lot of changes throughout the cycle-an increase in the content of certain hormones and a decrease in the number of other hormones. This change may be accompanied by a slight increase in temperature during menstruation.

Another reason for the subfebrile condition in women is pregnancy.

Subfebrile temperature after ARI

If after an acute respiratory viral infection there was a subfebrile temperature, then it means that the body has not yet overcome the viruses, and the struggle for health continues even in the absence of symptoms. In this case, you should consult LOR - the specialist will check the condition of the nose and throat, and if necessary, assign an analysis to the microflora of the throat to determine the number of bacteria or viruses. Normally, the temperature in ARVI should not persist for more than 5 days - if it keeps, then it means that complications arose that require detailed diagnosis and quality treatment.

Causes of prolonged subfebrile temperature

The reasons for a constant low-grade fever can be varied - from the stresses experienced to severe violations of thermoregulatory organs.

Subfebrile temperature in case of neurosis

If you believe psychologists and psychiatrists, today very many people suffer from a neurosis of varying severity. This leads to various pathologies, to determine the nature of which is quite difficult - for example, in the throat can be treated with the help of antiviral medications, and the cause of it will not be a virus, but nerves. Also things are the same with the temperature - if you notice irritability, sleep disturbance, anxiety, and others complain of harsh reaction from your side, and thus there is a subfebrile temperature, it speaks in favor of that the subfebrile condition keeps on a background a neurosis.

Subfebrile temperature with IRR

If the subfebrile temperature rises in the evenings, then this may indicate an exacerbation of the AVI. This diagnosis includes a wide range of symptoms, and therefore to determine the cause in the form of VSD is possible only after a complete examination of the body.

Subfebrile temperature in case of disruption of the pituitary and hypothalamus

The hypothalamus and pituitary gland are responsible for raising and lowering the temperature. This means that an unreasonable subfebrile condition may indicate that these parts of the brain are not working properly. In such cases, it is necessary to pass tests for hormones, as well as an MRI to exclude tumor diseases.

Subfebrile temperature in chronic infectious diseases

Very often the cause of subfebrile temperature are chronic infections of the throat and urogenital system. If you have chronic tonsillitis or cystitis, then it is likely that the harmful flora and the bacteria again led to an exacerbation, which the body tries to fight with increase in temperature.

Subfebrile temperature after pneumonia

After inflammation of the lungs, there may be a subfebrile temperature, o

which should not be worried if blood test data and X-ray show the norm.

Treatment of low-grade fever

Treatment of subfebrile temperature depends on what caused it. Temporary increase in temperature in women does not require treatment, and if this is due to chronic diseases, then complex treatment should be carried out: for example, with cystitis and tonsillitis are shown antibiotics.

If the temperature rises with a neurosis or VSD, then it is necessary to take antihistamines, and in severe cases - antidepressants or tranquilizers.

WomanAdvice.ru

Causes of low-grade fever

Every person knows that if the thermometer shows elevated temperature indicators, therefore, the inflammatory process in the human body proceeds. It turns out that this is not entirely true, and a high temperature can cause not only inflammation, the causes of subfebrile temperature can have a completely different genesis.

Causes of low-grade fever in women

The woman's organism is a rather complex structure of various interrelations. Throughout her life her body grows, develops, certain transformations take place. There is a change and a hormonal background. The reasons for subfebrile temperature in women are different, some of them are the same for both women and men, but, naturally, there are also individual ones.

• Having reached sexual maturity, the balance of hormones can vary depending on the phase of the menstrual cycle. Therefore, it is quite normal that the temperature indicators can rise just before menstruation.
• Period of pregnancy. There are temperature fluctuations and in the period when a fair sex representative is preparing to become a mother, nurturing her baby. This is also associated with hormonal changes in the body.
• To cause such a symptom is capable of respiratory-viral infection. After passing through the acute period of the course of the disease, the presence of a subfebrile condition suggests that the inflammatory process is not completely stopped and the fight against the virus is not complete. Therefore, if even the symptomatology of SARS is gone, then the treatment should be continued. In this situation, it will not be superfluous to make an appointment with a specialist (a doctor - an otolaryngologist). If there is no symptomatology, the doctor may prescribe a test, for example, examining a smear from the throat to the present microflora. This will allow to determine the extent of pathological invasion. With a normal course of acute respiratory illness, fever can persist for up to five days, if there is no reduction, therefore, the disease has continued as complications. Additional diagnostics and adequate therapeutic treatment are necessary.
• Persistent subfebrile deficiency of the hypothalamus and pituitary gland. It is these parts of the human brain that are responsible for fluctuations in body temperature. Unreasonable subfebrile condition is able to indicate that the functioning of these sites is malfunctioning and different from the norm. If the cause of the abnormality is suspected, the specialist will assign a magnetic resonance imaging (MRI) to the patient. One of the reasons for their failure is the developing tumor tumor.
• Another reason for the appearance of this symptomatology can be severe pathology of thermoregulatory organs. It requires a deep subject examination and treatment, and in some cases, lifelong maintenance therapy.
• To cause the emergence of subfebrile pathology is capable and experienced strong stress.
• Diseases of a dental nature, for example, caries.
• As evidenced by medical statistics, the modern population, especially large cities and megacities, to some extent suffer from neuroses. Nervous stress affects not only the psyche of people, it suffers from a strong emotional overexcitation and the whole body. Sometimes the nature of some manifestations is difficult to determine. For example, a person complains of uncomfortable sensations in the throat and begins to treat it with antiviral drugs - the result is zero, since the cause of the impaction may be a nervous shock. Therefore, if on the background of the subfebrile state there is irritability, a sharp change in mood, there is a feeling anxiety and sleep disturbances, these are clear signs that fever can hold as a reaction to neurosis.
• If the indicators on the thermometer go up in the evening, vegetative-vascular dystonia (VSD) is capable of provoking such a clinical picture. This diagnosis indicates a fairly wide range of diseases associated with the vascular system of the brain. But a more specific diagnosis can be obtained after a systematic examination.
• Mainly, the source of subfebrile is chronic infectious lesions of the ENT - organs and the genitourinary system. If a person has in his history, for example, cystitis or tonsillitis, in a chronic stage of leakage, the risk of recurrent activation of pathogenic microorganisms is significantly increased. Relapse provokes an exacerbation of the disease and an increase in temperature.
• Subfebrile temperature can be a consequence of the recovery period after the therapeutic treatment of pneumonia. But if the radiography and blood test do not show any deviations from the norm, then you should not worry. Gradually, everything will return to normal.

Causes of subfebrile temperature in children

Every person from childhood knows that the normal temperature of a person's body is an indicator of 3,. But doctors are not so categorical and allow a norm up to 3, oh. But if a child for several days in a row thermometer shows figures from 3, to 3, oC, then this fact begins to seriously disturb the parents. It is interesting that such indicators can be held by the baby for a month, while not being accompanied by other negative symptoms. The child during this period feels completely normal and leads an active lifestyle.

If such a situation is observed for at least two weeks, physicians begin to talk about subfebrilitete - medical situation, in which the clinical picture is colored with a single symptom - and this subfebrile temperature. Ignore this reaction of the baby's body should not. After all, it indicates the presence of some kind of malfunction, which, it is desirable, to establish more quickly and take the necessary measures.

The reasons for subfebrile temperature in children are different, but some of them can be voiced:

• Hidden leaky infectious lesions of internal organs.
• To cause such a symptom is also capable of an allergic reaction of the baby's organism to any external stimuli.
• To provoke an increase in temperature indices may be increased thyroid function, which produces an excess of enzymes.
• The source of high temperature can be the invasion of protozoa, for example, worms.
• The low content of hemoglobin or red blood cells in the child's blood (anemia), often causes temperature fluctuations.
• To cause a symptom are also possible failures in the work of metabolic processes, for example, in diabetes mellitus.
• Diseases affecting children's brain structures.
• Heavy form of avitaminosis, especially in regard to the lack in the body of the baby of such vitamins as C and the entire spectrum of group B.
• Congenital or received after birth failures in the immune system.
• Thermoneurosis is a condition in which a small patient is disturbed by a natural thermoregulation, that is, the baby's organism produces more heat per day than does it to spend. It is this excess and is the cause of low-grade fever. Such a malfunction can occur in the case of abnormalities in the endocrine system or a thermoregulatory center located in the brain.

It should be remembered that the subfebrile condition is not stopped by antipyretic drugs. And the problem is not even that it is useless and does not have any effect, so it also happens weakening of the protective forces of a small organism, worsening its ability to confront and combat disease.

In such a situation, parents are required to check the temperature characteristics of the baby's body for some time, it will not be superfluous to put these figures in a notebook. Such an approach will allow a specialist to better assess the situation. If the temperature keeps on high indicators some days on end, without consultation of the pediatrist here not to manage.

The doctor will prescribe a general examination and after receiving his results he will be able to give the necessary recommendations or will write out medical therapy. Physicians believe that it is necessary to treat this pathology. After all, any deviation from the natural work of a child's body is a stress for him.

In addition to medical treatment, if necessary, parents can help their child by organizing for him the correct mode of the day, which will include moderate loads and rest, including normal long-term sleep. Not the last place is given to hardening of the baby's body - it will allow to remove many problems with the child's health. Physical training also will be beneficial for strengthening the body. You should only adhere to the systematic nature of such procedures, otherwise you can not see the desired result. Practiced in such a clinical picture of hypnosis and acupuncture.

Causes of prolonged subfebrile temperature

A subfebrile symptom is the indicator on a thermometer ranging from 37 to 38 ° C. Its long manifestation is a frequent complaint with which patients turn to a specialist for consultation. Causes of prolonged subfebrile temperature can be different, for their establishment the patient needs to undergo a complete examination.

Quite often subfebrile condition is observed in young women against the background of increased fatigue, exhaustion organism by all kinds of diets, weakening or loss of ability for prolonged physical or mental labor. This fact is explained by the physiological individuality of the woman's body. It is women who show a high level of infectious damage to the urogenital system, and it is the female body that undergoes multiple psycho-vegetative disorders.

It should also be understood that a prolonged fever is very rarely provoked by an organic disease. Predominantly, this symptomatology reflects classical vegetative dysfunction - the disease is caused by a symptom-complex of disorders of vegetative, sensomotor and psycho-emotional activity.

Sources that cause a prolonged manifestation of the symptom in question are divided into two groups: non-infectious and infectious pathologies.

Such infectious diseases include:

• Tuberculosis. When there is a high temperature, which is observed for a long period of time, the first thing that physicians do, this is an exception to the list of possible causes of the pathological manifestation of such a terrible disease as tuberculosis. It is not always easy to do this. When revealing an anamnesis, the doctor must find out the patient's contact with a patient suffering from an open form of tuberculosis.
• If the patient has an anamnesis treated with tuberculosis. This disease is dangerous in that it shows a high percentage of relapses. This may be a poorly cured disease, which was carried out over the next three months.

In the presence of one form of tuberculosis, you can observe, in addition to a long subfebrile condition, and additional symptoms:

• General intoxication of the patient's body.
• Rapid fatigue and weakness.
• Increased work of the sweat glands.
• Impairment of appetite.
• Loss in weight.
• The cough that lasts for more than three weeks is a sign of pulmonary tuberculosis. This includes the appearance of shortness of breath, expectoration of blood, pain symptoms in the chest.
• Complaints about the normal operation of the damaged organ.
• Focal infection. One of the reasons for the subfebrile condition, many doctors call the presence in the patient's body of a constant foci of infection (sinusitis, adnexitis, tonsillitis and others), although in most cases these diseases are not accompanied by high temperature indicators. To prove the involvement of this pathology to the phenomenon under consideration, it is possible only in a practical way: after performing the sanation of the affected area, we get a decrease in temperature.
• Chronic toxoplasmosis. About 90% of patients suffering from this disease have a symptom in their symptomatic set.
• A similar picture shows chronic brucellosis.
• Subfebrile condition is a constant companion of such a disease as acute rheumatic fever.
• This symptom may be a consequence of a past infectious disease, its physicians are called a "temperature tail". An example is pertussis. After the patient ceases to be infectious, his subcortex continues to give signals to a cough, a similar mechanism works here. It turns out the so-called syndrome after viral asthenia - a developing psychopathological disorder. In such a situation, the tests show a norm, and the temperature returns to normal indices independently, sometimes for a couple of months, and sometimes this can stretch out to six months. Although this can not be stated unequivocally. Everything depends on the specific disease and the severity of its manifestation.

To non-infectious diseases that can cause a long subfebrile condition include:

• Thyrotoxicosis is a disease that has a somatic character. Its appearance is caused by a high concentration of thyroid hormones in the blood plasma of the patient.
• For some people, low-grade fever is an individual physiological norm.
• The cause of this symptom may be physical stress, for example, increased exercise.
• The appearance of high temperature is possible against the background of emotional overload.
• By virtue of its individual characteristics, such a symptomatology the body is able to respond to food intake.
• Provoke an increase in temperature can be a long time in a hot and stuffy room.
• This symptom can cause pregnancy. This is a rare manifestation, but it can manifest itself during the first three to four months from the moment of conception.
• Premenstrual period in some of the fairer sex.
• As long-term medical monitoring shows, when measuring body temperature in different axillary basins, the measurement results may differ by, ˚С. Higher indicators, for some reason, are shown by the left side.
• Due to the individuality of the organism, the constant high temperature can be noted by the thermometer as a reflex reaction of the organism to the measurement procedure itself. This applies only to axillary indices. When measuring this indicator in the oral cavity and through the anus, there are no such deviations.

To provoke the symptom of interest to us, the causes relating to the psycho-vegetative region of the human body are capable:

• Vegetative neurosis is a disease associated with organic changes in the tissues of the autonomic nervous system, the result of which is a violation of their normal functioning.
• Thermoneurosis is an increase in body temperature, the etiology of which is the neurasthenic nature of pathology. High rates for this disease can last for more than one year.
• In the history of the patient there is a traumatic brain injury.
• Violation of structural and functional homeostasis, metabolism and functions in a pathological process affecting the endocrine system.
• Psycho-emotional overload.
• Seasonal or permanent allergization.

Causes of constant low-grade fever

The constant presence of elevated temperature indices of the human body in the intervals above 3 ° C to 3 ° C is fixed for a long time time: from a couple of weeks to several months, and even more than one year, this clinical picture falls under the diagnosis - subfebrile temperature. To deal with the problem, you need to know its source. The reasons for the constant low-grade fever are somewhat diverse, and whether or not the primary source is established depends on the effectiveness of the fight against this pathology.

• One of the reasons for the constantly present heat can be individual characteristics of the human body.
• Provoke constant high rates on the thermometer are capable of internal sluggish inflammatory processes of various etiologies.
• The failure of the process of thermal regulation of the body can be a consequence of a disease of the nervous system (organic nature) affecting the stem structure of the brain.
• Nonspecific focal infection, which has passed into the plane of chronic, for example, pancreatitis, sinusitis, cholecystitis and others.
• Diseases of a chronic nature, the basis of which is inflammation, for example, pneumonia.
• Sluggish infections that are sexually transmitted, for example, syphilis, chlamydiasis, HIV infection.
• Open or closed form of tuberculosis.
• Constantly elevated temperature can be observed in the case of invasive damage to helminths or other protozoan parasites.
• In modern conditions, doctors often state a latent form of sepsis.
• Malignant tumor.
• Pathological changes associated with the violation of immune responses of the human body. It can be rheumatoid arthritis, enteritis, ulcerative colitis, allergic reaction to medication.
• Subfebrile condition may be observed in premenopausal women.
• Endocrine pathology: thyrotoxicosis, pheochromacytoma.
• Thermoneurosis is a persistent disorder of heat exchange as a result of functional damage to the center of the thermor, which occurs in autonomic dysfunction in children, adolescents and young women.

The problem in determining the functional reasons for the emergence of subfebrile condition lies in the fact that most patients have a history of chronic infection in the anamnesis.

Causes of subfebrile temperature in adolescents

The predominantly fixed causes of subfebrile temperature in a teenager are akin to those listed above. The most frequent source of the disease, capable of provoking high temperature indices, observed for a long time, is an infectious lesion (of various etiologies) of the body patient. It would seem that the usual acute acute respiratory viral infection (ARVI) in most cases, except general weakness, headache, pain symptoms in the joints, rhinitis and cough, accompanied by a subfebrile condition.

Some infectious diseases (for example, chicken pox, rubella) in infancy pass almost without fever or it takes small increased values, whereas in adolescence, these pathologies are more complex, and body temperature records are fixed at higher figures.

In the case of a prolonged course of the inflammatory process, the main symptomatology often loses its sharpness and becomes habitual. The only criterion signaling the presence of an internal problem remains the subfebrile condition, which does not last a long time. In this situation, determining the root cause of pathology can be difficult.

The centers of infectious defeat of an organism of the teenager can be:

• Diseases of the ENT - organs, such as:
  • Sinusitis.
  • Pharyngitis.
  • Rhinitis.
  • Tonsillitis.
  • Laryngitis.
  • Otitis.
  • And other diseases.
• Dental caries or periodontitis.
• Pathological lesions of the digestive tract:
  • Colitis (inflammatory process of the intestinal mucosa).
  • Cholecystitis (inflammatory disease of the gallbladder).
  • Gastritis (inflammation of the mucous membrane of the stomach wall).
  • Pancreatitis (inflammation of the pancreas).
  • Duodenitis (inflammation of the duodenum).
  • And others.
• Infectious and inflammatory diseases of the urinary tract:
  • Cystitis.
  • Urethritis.
  • Pyelonephritis.
  • Other diseases affecting this system.
• Inflammatory diseases affecting the sexual organs of a teenager.
• Abscesses formed at the injection site.
• Pathological changes in endocrine genesis.

In order to correctly diagnose and find the cause of subfebrile fever, the attending doctor usually prescribes to the patient a general analysis of blood and urine. The result of their research clearly shows the presence or absence of an inflammatory process in the body of a teenager. This conclusion is made on the basis of the leukocyte formula, as well as the level of ESR (erythrocyte sedimentation rate).

Consultations of more specialized specialists are appointed: dentist, gynecologist, gastroenterologist, otolaryngologist, surgeon, if necessary, and neurologist.

To confirm or deny his suspicions, the expert appoints an additional examination. It can be ultrasound, computed tomography, radiography and other diagnostic techniques.

In case of diagnosing the disease, it is necessary to undergo complete drug therapy. Chronic infectious lesions are especially difficult to treat.

Rarely, but the reason for low-grade fever may be:

• Toxoplasmosis, the causative agent of which is the simplest intracellular parasite - toxoplasm (Toxoplasma gondii), the main source of which are domestic animals or poorly roasted meat.
• HIV infection.
• Brucellosis is a zoonotic infection. She is basically able to hit a teenager who actively helps parents in caring for pets. This disease is quite dangerous, leads to an unrestrained violation of the motor and psychological sphere, the likelihood of a lethal outcome is very high.
• Parasitic infections, which are caused by helminths, pinworms, ascarids and other parasites.
• Tuberculosis. How unfortunate it sounds, but to date, this disease has passed from the social to the pathology, which is able to affect even small children, it increasingly affects the body teenagers. Therefore, the annual Mantoux test conducted in schools makes it possible to identify and treat the disease in time. If the lesion affects several organs, then one radiography of the lungs to determine the cause of subfebrile temperature can be very difficult. At the present stage of the development of medicine, the diagnosis of extrapulmonary forms is still rather difficult.

Causes of subfebrile temperature in the evening

Quite often people on occasion learn about the presence of subfebrilitet, this is due to the fact that very often such a temperature anomaly does not manifest itself with the accompanying pathological symptomatology. But before you panic, you should follow the instructions for correct temperature measurement. It is necessary to know that the measurement in the armpit should be carried out by holding the thermometer for 5-10 minutes. When measuring temperature indicators with more modern electronic devices, You must carefully read the instructions that came with the device and perform all requirements. Predominantly the time interval of the measurement is also 5-10 minutes.

Determine the end of the measurement time by the sound signal only if the measurement is carried out through the anus. Do not just forget that the temperature measured in the rectum is slightly higher than with a similar measurement in the axillary region.

It is worth knowing that the reasons for low-grade fever in the evening can be quite trivial. The human body is organized in such a way that in the interval from four to six o'clock in the morning and with four to eight o'clock in the evening there is a physiologically reasonable increase in temperature readings body. At many people such improvements just get to a subfebrile zone. To determine that this picture is an individual feature of your body, it should be simple to conduct fixed measurements every three to four hours in the daytime, as well as at least once throughout the night. Do this manipulation is necessary for several weeks. The results obtained are tabulated, so it will be easier to analyze the results of the measurements.

It is almost impossible to establish the cause of the pathological symptom independently. And if the measurement reveals subfebrile condition, you should consult your district doctor for advice. He is professionally able to assess the situation and, if necessary, write a referral for a consultation to a more narrow specialist. At the same time, medical statistics show that in 2% of the world's population the constant low-grade temperature, especially in the evening, is the norm.

One should not forget the fact that when measuring the temperature indices of the body under different axillary depressions, the measurement results in most cases differ by, ˚С. The higher figures are mainly given by the left side.

But the cause of increased indications of a thermometer in the evening may be a non-cured infection, and a sluggish inflammatory process, which has passed into the chronic plane, stressful situations, as well as other pathological violations. But to establish the cause and source of the disease is capable only of a qualified specialist. He is also able to paint an effective cupping therapy, or, if the cause is not associated with pathologies, will give the necessary recommendations.

If a person does not have anything to hurt, and the thermometer shows a slight elevated temperature, many people do not particularly attach importance to such a picture. But having become acquainted with this article, it can be concluded that ignoring this symptomatology can lead to irreversible pathological changes in the human body, because the causes of subfebrile temperature are quite diverse and the source of the symptom in question can be quite serious disease. No one in this article calls for a panic, but a full examination, however, will not be superfluous. After the earlier diagnosed and treated disease, the more likely a favorable outcome, as well as minimizes the likelihood of various complications.

What's bothering you?

Low-grade fever

Who to contact?

Infectionist Family doctor General practitioner

ilive.com.ua

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