Whether due to temperature. What are the causes of high fever without symptoms in an adult

12.11.2019 -

To assess the condition of a person with a high temperature, let's find out why this happens to the body.

normal body temperature

The temperature of a person is normally 36.6 C on average. This temperature is optimal for the biochemical processes occurring in the body, but each organism is individual, therefore it is possible to consider the temperature from 36 to 37.4 C normal for some individuals ( we are talking about a long-term condition and if there are no symptoms of any disease). In order to make a diagnosis of habitually elevated temperature, you need to undergo an examination by a doctor.

Why does body temperature rise?

In all other situations, an increase in body temperature above normal indicates that the body is trying to fight something. In most cases, these are foreign agents in the body - bacteria, viruses, protozoa or a consequence of physical effects on the body (burn, frostbite, foreign body). At elevated temperatures, the existence of agents in the body becomes difficult, infections, for example, die at a temperature of about 38 C.

But any organism, like a mechanism, is not perfect and can fail. In the case of temperature, we can observe this when the body, due to the individual characteristics of the immune system, reacts too violently to various infections, and the temperature rises too high, for most people it is 38.5 C. But again, for children and adults who had early febrile convulsions at a high temperature (if you don’t know, ask your parents or your doctor, but usually this is not forgotten, as it is accompanied by a short-term loss of consciousness), a critical temperature can be considered 37.5-38 C.

Complications of fever

If the temperature is too high, transmission will be disturbed nerve impulses, and this can lead to irreversible consequences in the cerebral cortex and subcortical structures up to respiratory arrest. In all cases of critically high temperature, antipyretics are taken. All of them affect the center of thermoregulation in the subcortical structures of the brain. Auxiliary methods, and this is primarily wiping the surface of the body warm water It is aimed at increasing blood flow on the surface of the body and promotes the evaporation of moisture, which leads to a temporary and not very significant decrease in temperature. Rubbing with a weak solution of vinegar at the present stage, after the studies carried out, is considered inappropriate, since it has exactly the same results as just warm water.

A prolonged increase in temperature (more than two weeks), despite the degree of increase, requires an examination of the body. In the course of which the cause must be clarified or the diagnosis habitually made subfebrile temperature. Please be patient and contact several doctors with the results of the examination. If, according to the results of analyzes and examinations, pathology is not revealed, do not measure the temperature without any symptoms, otherwise you risk getting psychosomatic diseases. good doctor I must answer you exactly why you constantly have a subfebrile temperature (37-37.4) and whether you need to do anything. There are a lot of reasons for a long-term elevated temperature, and if you are not a doctor, do not even try to diagnose yourself, and it is impractical to occupy your head with information you do not need at all.

How to measure temperature correctly.

In our country, probably more than 90% of people measure body temperature in the armpit.

The armpit should be dry. The measurement is made in calm state 1 hour after any physical activity. It is not recommended to take hot tea, coffee, etc. before the measurement.

All this is recommended when clarifying the existence of a long-term high temperature. In emergency cases, when complaints of poor health appear, measurements are taken under any conditions. Mercury, alcohol, electronic thermometers are used. If you have any doubts about the correctness of the measurements, measure the temperature in healthy individuals, take another thermometer.

When measuring temperature in the rectum, a temperature of 37 degrees C should be considered the norm. Women should take into account the menstrual cycle. It is possible that the temperature in the rectum will normally rise to 38g C during the period of ovulation, which is the 15th-25th day of the cycle of 28 days.

Measurement in oral cavity I consider it inappropriate.

Recently, ear thermometers have appeared on sale, which are considered the most accurate. When measuring in the ear canal, the norm is the same as when measuring in the armpit. But young children usually react nervously to the procedure.

Calling an ambulance requires the following conditions:

a. In any case, at a temperature of 39.5 and above.

b. High temperature is accompanied by vomiting, blurred vision, stiffness of movements, muscle tension in cervical region spine (it is impossible to tilt the chin to the sternum).

in. High fever is accompanied by severe pain in the abdomen. Especially in the elderly, even with moderate pain in the abdomen, at a temperature, I advise you to call an ambulance.

d. In a child under ten years of age, the temperature is accompanied by a barking, dry cough, difficulty in breathing. A high probability of developing inflammatory narrowing of the larynx, the so-called laryngotracheitis or false croup. The algorithm of actions in this case is to humidify the inhaled air, trying not to scare, soothing, take the child to the bathroom, pour hot water to get steam, inhale humidified, but of course not hot air, therefore being at least 70 centimeters away from hot water. In the absence of a bathroom, a makeshift tent with a source of steam. But if the child is still scared and does not calm down, then stop trying and just wait for an ambulance.

e. A sharp rise in temperature over 1-2 hours above 38 degrees C in a child under 6 years old, who had convulsions at a high temperature earlier.
The algorithm of actions is to give an antipyretic (dosages must be agreed in advance with the pediatrician or see below), call an ambulance.

In what cases should you take an antipyretic to reduce body temperature:

a. Body temperature above 38.5 gr. C (if there is a history of febrile convulsions, then at a temperature of 37.5 degrees C).

b At a temperature below the above figures, only in the case when the symptoms are expressed in the form of a headache, a feeling of aches all over the body, and general weakness. significantly interferes with sleep and rest.

In all other cases, you need to allow the body to take advantage of the increased temperature, helping it to remove the so-called infection-fighting products. (dead leukocytes, macrophages, remnants of bacteria and viruses in the form of toxins).

I will give my preferred herbal folk remedies.

Folk remedies at elevated temperatures

a. In the first place, fruit drinks with cranberries - take as much as the body requires.
b. Fruit drinks from currants, sea buckthorn, lingonberries.
in. Any alkaline mineral water with a low percentage of mineralization or just pure boiled water.

The following plants are contraindicated for use at elevated body temperature: St. John's wort, golden root (Rhodiola rosea).

In any case, if the temperature rises for more than five days, I recommend that you consult a doctor.

a. The onset of the disease when it appeared fever And can you relate anything to her appearance? (hypothermia, increased physical activity, emotional overstrain).

b. Has there been contact with feverish people in the next two weeks?

in. Have you had any illness with fever in the next two months? (remember, you may have suffered some kind of ailment “on your feet”).

d. Have you had a tick bite this season? (It is appropriate to recall even the contact of a tick with the skin without a bite).

e. It is very important to remember if you live in endemic areas for hemorrhagic fever with renal syndrome (HFRS), and these are areas far east, Siberia, the Urals, the Volgovyatsk region, whether there was contact with rodents or their waste products. First of all, fresh excrement is dangerous, since the virus is contained in them for a week. The latent period of this disease is from 7 days to 1.5 months.

e. Indicate the nature of the manifestation of elevated body temperature (jump-like, constant, or with a smooth increase at a certain time of the day).

h. Specify whether you have been vaccinated (vaccinated) within two weeks.

well. Clearly tell your doctor what other symptoms accompany high body temperature. (catarrhal - cough, runny nose, pain or sore throat, etc., dyspeptic - nausea, vomiting, abdominal pain, liquid stool etc.)
All this will allow the doctor to more purposefully and timely prescribe examinations and treatment.

Over-the-counter drugs used to lower body temperature.

1. paracetamol in various names. Dosage for adults single 0.5-1 gr. daily up to 2 gr. the period between doses is at least 4 hours, for children 15 mg per kilogram of the child's weight (for information, 1000 mg in 1 gram). For example, a child of 10 kg of weight needs 150 mg; in practice, this is a little more than half a tablet per 0.25 grams. It is available both in tablets of 0.5 g and 0.25 g, and in syrups and rectal suppositories. Can be used from infancy. Paracetamol is part of almost all combined anti-cold drugs (Fervex, Teraflu, Coldrex).
Babies are best used in rectal suppositories.

2. nurofen (ibuprofen) adult dosage 0.4g. , children's 0.2g Children are recommended with caution, used in children with intolerance or weak action of paracetamol.

3. nise (nimesulide) is available in both powders (nimesil) and tablets. Adult dosage 0.1g…children 1.5 milligrams per kilogram of the child's weight, that is, with a weight of 10 kg, 15 mg is required. Just over one tenth of a tablet. Daily dosage no more than 3 times a day

4. Analgin - adult 0.5 g ... children's 5-10 mg per kg of child's weight That is, with 10 kg of weight, a maximum of 100 mg is required - this is the fifth part of the tablet. Daily up to three times a day. Not recommended for children for frequent use.

5. Aspirin - adult single dosage 0.5-1 gr. Daily up to four times a day, children are contraindicated.

At elevated temperatures, all physiotherapy, water procedures, mud therapy, massage are canceled.

Diseases occurring with a very high (above 39 degrees C) temperature.

Flu - viral disease, accompanied by a sharp rise in temperature, severe aching joints and pain in the muscles. Catarrhal phenomena (runny nose, cough, sore throat, etc.) join on the 3rd-4th day of illness, and with the usual ARVI, first the symptoms of a cold, then a gradual rise in temperature.

Angina - severe pain in the throat when swallowing and at rest.

Chicken pox (chickenpox), measles can also begin with a high temperature and only on the 2-4th day the appearance of a rash in the form of vesicles (vesicles filled with liquid).

Pneumonia (inflammation of the lungs) almost always, except for patients with reduced immunity and the elderly, it is accompanied by high fever. A distinctive feature, the appearance of pain in chest, which increases with deep breathing, shortness of breath, dry cough at the beginning of the disease. All these symptoms in most cases are accompanied by a feeling of anxiety, fear.

Acute pyelonephritis(inflammation of the kidneys), along with a high temperature, pain in the projection of the kidneys comes to the fore (just below 12 ribs, with irradiation (recoil) to the side more often on one side. Edema on the face, increased blood pressure. The appearance of protein in urine tests.

Acute glomerulonephritis, the same as pyelonephritis only with the inclusion in the process of the pathological reaction of the immune system. It is characterized by the appearance of erythrocytes in urine tests. It has, in comparison with pyelonephritis, a higher percentage of complications, is more prone to becoming chronic.

Hemorrhagic fever with renal syndrome- an infectious disease transmitted from rodents, mainly from mice voles. It is characterized by a decrease, and sometimes complete absence urination in the first days of the disease, redness of the skin, severe muscle pain.

Gastroenterocolitis(salmonellosis, dysentery, paratyphoid, typhoid fever, cholera, etc.) The main dyspeptic syndrome is nausea, vomiting, loose stools, abdominal pain.

Meningitis and encephalitis(including tick-borne) - inflammation meninges infectious nature. The main meningeal syndrome is severe headaches, blurred vision, nausea, neck muscle tension (it is impossible to bring the chin to the chest). Meningitis is characterized by the appearance of a punctate hemorrhagic rash on the skin of the legs, the anterior wall of the abdomen.

Viral hepatitis A- the main symptom is "jaundice", skin and the sclera becomes icteric.

Diseases occurring with a moderately elevated body temperature (37-38 degrees C).

Exacerbations chronic diseases, such as:

Chronic bronchitis, complaints of cough both dry and with sputum, shortness of breath.

Bronchial asthma of an infectious-allergic nature - complaints of nocturnal, sometimes daytime attacks of lack of air.

Tuberculosis of the lungs, complaints of prolonged coughing, severe general weakness, sometimes streaks of blood in the sputum.

Tuberculosis of other organs and tissues.

Chronic myocarditis, endocarditis, characterized by prolonged pain in the region of the heart, arrhythmic irregular heartbeat

Chronic pyelonephritis.

chronic glomerulonephritis - the symptoms are the same as in acute ones, only less pronounced.

Chronic salpingoopharitis - gynecological disease which is characterized by pain in the lower abdomen, discharge, pain when urinating.

The following diseases occur with subfebrile temperature:

Viral hepatitis B and C, complaints of general weakness, pain in the joints, in the later stages "jaundice" joins.

Diseases thyroid gland(thyroiditis, nodular and diffuse goiter, thyrotoxicosis) main symptoms, sensation of a lump in the throat, palpitations, sweating, irritability.

Acute and chronic cystitis, complaints of painful urination.

Acute and exacerbation of chronic prostatitis, a male disease characterized by difficult and often painful urination.

Sexually transmitted diseases, such as gonorrhea, syphilis, as well as opportunistic (may not manifest as a disease) urogenital infections - toxoplasmosis, mycoplasmosis, ureoplasmosis.

large group oncological diseases, one of the symptoms of which may be a slightly elevated temperature.

The main tests and examinations that can be prescribed by a doctor if you have prolonged subfebrile condition (increased body temperature in the range of 37-38 degrees C).

1. Complete Analysis blood - allows by the number of leukocytes and the value of ESR (erythrocyte sedimentation rate) to judge whether there is any inflammation in the body. The amount of hemoglobin can indirectly indicate the presence of diseases gastrointestinal tract.

2. A complete urinalysis indicates the state of the urinary system. First of all, the number of leukocytes, erythrocytes and protein in the urine, as well as the specific gravity.

3. Biochemical analysis of blood (blood from a vein):. CRP and rheumatoid factor - their presence often indicates an overactive immune system of the body and manifests itself when rheumatic diseases. Liver tests can diagnose hepatitis.

4. Hepatitis B and C markers are prescribed to exclude the corresponding viral hepatitis.

5. HIV- to exclude acquired immunodeficiency syndrome.

6. Blood test for RV - to detect syphilis.

7. Mantoux reaction, respectively, tuberculosis.

8. Fecal analysis is prescribed for suspected diseases of the gastrointestinal tract and helminthic invasion. Positive occult blood in the analysis is a very important diagnostic sign.

9. A blood test for thyroid hormones should be done after consulting an endocrinologist and examining the thyroid gland.

10. Fluorography - even without diseases, it is recommended to take place once every two years. It is possible to prescribe FLG by a doctor for suspected pneumonia, pleurisy, bronchitis, tuberculosis, lung cancer. Modern digital fluorographs make it possible to make a diagnosis without resorting to large radiography. Accordingly, a low dose is used x-ray exposure and only in unclear cases additional examinations on the radiograph and tomography are required. The most accurate is magnetic resonance imaging.

11 Uzi internal organs, the thyroid gland is produced for the diagnosis of diseases of the kidneys, liver, pelvic organs, thyroid gland.

12 ECG, ECHO KG, to exclude myocarditis, pericarditis, endocarditis.

Analyzes and examinations are prescribed by the doctor selectively, based on clinical need.

Therapist - Shutov A.I.

The human body temperature is important indicator in making diagnoses. Each patient has his own norms, despite the fact that a thermometer reading of 36.6 degrees is considered standard and natural.

Many people do not pay attention to the temperature and do not even take it unless there are additional signs of illness.

If you still care about your well-being and periodically monitor the thermometer readings, then you should know and consider the following facts:

the temperature is measured in the armpit, in the mouth and rectum (the norms of the values \u200b\u200bare different);
if during the day the thermometer readings fluctuate by half a degree, then this is not a pathology;
the minimum body temperature (less than 36 degrees) is observed during deep sleep;
in evening time thermometer values are higher than in the morning;
in older people, the temperature is lower, and in children under three years of age it is higher than in middle-aged people.
If for a long time, an adult has a temperature of 37-37.5 without symptoms, there should be doubt about his health.

It is worth noting that the identification of the root cause is complicated by the fact that there are no additional manifestations, and self-diagnosis is unacceptable here.

Elevated body temperature is caused by certain proteins called pyrogens. They fall into human body from external environment(primary) or produced spontaneously (secondary).

These proteins bind to the hypothalamus, activate immune system and affect the general well-being of a person.

First of all, the reasons that an adult patient has a temperature of 37 without symptoms are divided into natural and external.

Natural conditions include conditions that have nothing to do with pathological conditions, but at the same time regulate the temperature regime. An increase in thermometer values occurs with stress, hormonal imbalance in women, due to the adoption of certain medicines, because of the established lifestyle and so on.
Pathological causes of hyperthermia can be different. Some diseases are acquired from strangers through infection. Others are triggered by the work of the body. Also, congenital pathologies are often found, due to which the body temperature rises.

One way or another, when pathological causes The patient needs medical attention. Each person needs to have an idea about the reasons that can provoke hyperthermia.

Diseases are the most common cause of hyperthermia

The most common reason why a temperature of 37 rises in the evening without symptoms is any disease.

It can be congenital or acquired, occur in acute or chronic form, have a temporary negative impact on a person or a permanent one.

Respiratory viral infections- most frequent occasion for a fever. Viruses infect the upper or lower respiratory tract of a person. This activates the body's defenses. and there is a sharp jump in temperature to 37.3-37.6 without symptoms. Then, after 3-5 days, additional manifestations appear, and the doctor will be able to accurately say about the cause of the disease.
causative agents are also known intestinal diseases related to viruses. Microorganisms infect soft tissues and mucous membranes abdominal cavity, the latent period can last up to a week.
Inflammatory processes can proceed without additional symptoms. But most often it happens only in the first days of illness.. There is a high probability that in a few days the patient will have other symptoms of the disease in addition to the temperature.
Bacterial causes are less common. Statistics show that they are in second place in popularity after viral pathologies. Often bacterial infection becomes a complication of an improperly treated viral disease. Bacteria affect the respiratory, tissue, bone, urinary and digestive systems.
Tumor processes - common cause the fact that the temperature is 37-37.5 for a long time without symptoms. Often, it is this symptom that makes patients see a doctor, where he learns about his disappointing diagnosis.

Pathologies of the respiratory system

If a person has a slight temperature and nothing else, then this indicates a latent course of a viral or bacterial infection.

Often this is how the familiar SARS passes. With it, the temperature returns to normal within 3-5 days. After some time, the patient may develop additional symptoms in the form of a cough, runny nose, or body aches.

It is known that tuberculosis proceeds practically without symptoms. At the same time, the temperature of 37.3-37.5 lasts for 2 weeks or more, and this disease is detected only during the examination of the patient with a complaint of prolonged temperature.

Diseases of the urinary and genital area

Maintaining a low temperature for a month or more may be due to the chronic course of diseases such as pyelonephritis or cystitis.

Usually they are manifested by additional signs, but depending on the sensitivity of the patient, they may not be noticed. Vulvovaginitis in women and prostatitis in men occur with a slight increase in the level of the thermometer.

Digestive disorders

Prolonged subfebrile body temperature without additional manifestations can indicate gastritis, ulcers, hepatitis, cholelithiasis and other pathologies.

Intestinal infections, colitis, and even flatulence can cause a slight increase in thermometer readings.

Other diseases

A temperature of 37.3-37.5 without symptoms in an adult can last for a long time with such chronic diseases as:

adnexitis.
tonsillitis.
pyelonephritis.

Inflammation of the heart muscle is also accompanied by this symptom, later additional manifestations join it.

A slight increase in the values on the thermometer occurs as a result of injuries (bruises, cuts). Even an ordinary splinter, which is long in the human body, can provoke this symptom.

With blood diseases (for example, leukemia), the temperature increases for a while, after which it returns to normal. summon this sign can: arthrosis, lupus erythematosus, sepsis, allergies, scleroderma and other diseases.

Influence of the hormonal background

Deviations and malfunctions in the work of the hypothalamic-pituitary system are always accompanied by causeless temperature fluctuations.

In recent years, more and more patients turn to specialists with complaints of subfebrile temperature. However, they do not have additional symptoms of the disease. The reason in this case may be a violation in the hormonal system of the body.

A few decades ago, this more attributed female body. In patients, failures were accompanied by a violation menstrual cycle. But in recent decades, hormone production disorders are common in men.

The thermometer level can show a mark of 37-37.5 degrees for several years. There are no additional symptoms in the patient. This deviation is preceded by a head injury, a tumor, cerebral edema, encephalitis and other conditions that could occur a long time ago.

Some people who complain of hyperthermia have hypothalamic syndrome- a constant violation of the functions of the apparatus that regulates body temperature.

The work of the thyroid gland and adrenal glands also affects the performance of the thermometer. Even the functions of the liver and kidneys can affect this process, since these organs are the conductor of hormones in the human body.

Psychosomatics

Temperature 37-37.2 without symptoms in adults of both sexes, may be due to psycho-emotional reasons. Permanent nervous tension, stress, fatigue, lack of sleep - that's what contributes to the appearance of this symptom.

A slight increase in the level of the thermometer (up to 37.3) is noted in people during rage, anger. If you have recently suffered a major shock, then there is nothing strange about hyperthermia.

The temperature can also rise from joyful emotional experiences. Here it is important to consider individual characteristics organism. Some people endure any shocks without changes in temperature, while others feel hyperemia at the slightest experience.

Temperature increase in women

In the fairer sex, temperature fluctuations occur especially often. In some way, the reasons for this can be called hormonal. But women should be singled out in a separate block.

Temperature 37-37.2 during pregnancy early dates is a normal and common occurrence. It rises due to the release of large volumes of progesterone - the hormone of pregnancy. This state can be maintained long time: throughout the first trimester. It is important to pay attention to well-being, because during this period all diseases will be dangerous.. If there are no additional symptoms, and a woman in position has a temperature of 37-37.3 degrees, then there is nothing to worry about.
In the second part of the cycle, an increase in temperature can also occur. It is due to the fact that an egg came out of the ovary, and in its place a corpus luteum. It allocates the same progesterone that is necessary for conception. During this period, women may notice that the thermometer level shows slightly overestimated numbers: 36.9-37.1. After the onset of menstruation, they will return to normal.
An increase in temperature values in patients often occurs after surgical and diagnostic procedures. Laparoscopy, hysteroscopy, metrosalpingography, diagnostic curettage, abortion, childbirth and other procedures are accompanied by fever. In this case, you should follow medical advice given to the patient after the procedure. Within a short period of time, the thermometer readings will return to normal.
Breastfeeding women always face a slight increase in temperature. If you measure it in the armpit, you can get values of 37.2-37.7 degrees. It's all about closely spaced mammary glands. It is believed that these indicators are not informative, since they show the temperature of breast milk. Women during lactation should measure it at the elbow.
Some women in menopause hyperemia is determined with indicators of 37-37.4 degrees, which is not a deviation from the norm.

Diagnosis and treatment

Before you start looking for one or more causes of hyperthermia in yourself, you need to make sure that the measurement was carried out correctly. Observe the following rules when determining body temperature:

use a working thermometer (well, if it is a mercury thermometer);
take measurements in same time(not earlier than half an hour after eating and physical activity);
if the measurement is carried out in the armpit, then it must be clean and dry.

With persistent hyperthermia, you should definitely consult a doctor. The specialist will prescribe to the patient certain types examinations, based on the anamnesis and concomitant clinical picture. When diagnosing, it is necessary to undergo the following studies:

blood test (general, biochemical, sugar and coagulability);
urinalysis (general, according to Nechiporenko, with decoding of salts);
ultrasound scanning of the peritoneum (kidneys, small pelvis, digestive organs);
examination of the heart and blood vessels (ultrasound, ECG, Doppler);
x-ray and fluorography;
determination of antibodies, tumor markers, pathogens and a narrower range of diagnostic manipulations (if necessary).

What should the patient do?

Usually subfebrile temperature (up to 38) does not require antipyretics. However, all rules have their exceptions.

To bring down the temperature exceeding 37.5 degrees is necessary for pregnant women, people with diseases of the nervous system, patients who are prone to convulsions.

For this, commonly used drugs based on ibuprofen or paracetamol. In other situations, do the following:

accept horizontal position(this will help stabilize emotional condition and relieve stress)
do aromatherapy (oil will help eliminate hyperemia) tea tree mixed with orange);
put a cloth soaked in water on the forehead and temples (you can add vinegar in equal proportions for effectiveness);
drink fortified tea (with cranberries, viburnum, raspberries).

Why is the temperature rising?

Few people know that our body temperature tends to change slightly during the day. When a person wakes up, his body temperature may be below the established norm and be 35.5-36 degrees. And by the evening, on the contrary, our body can heat up by 0.5-1 degrees. Any higher figure is already a signal to start looking for the causes of elevated temperature.

Why is the temperature rising?

A high temperature for most people is a malaise, weakness, a broken state. And, of course, when we see numbers above 37 on the thermometer, we get upset. But in fact, the ability of the body to raise the temperature is an amazing gift that nature has given us. It is thanks to hyperthermia that our body is able to fight off foreign organisms on its own. An increase in body temperature in response to the introduction of viruses or bacteria is a protective reaction aimed at enhancing the immune response. At elevated temperatures, immune factors work most actively: the cells responsible for the antiviral and antibacterial response begin to perform their functions much faster and more efficiently, and immune responses become stronger.

Antibodies circulating in the blood associated with foreign antigens, as well as fragments of viruses and bacterial membranes, enter the hypothalamus with the blood flow, where the thermoregulation center is located, and cause an increase in temperature. Since this is a defensive reaction, you should not panic and try to immediately bring down the temperature with the help of antipyretics. With such actions, you will suppress the immune response and prevent the body from fighting infections, because some of them die at a body temperature of about 38 degrees. Not to mention that antipyretic drugs have certain side effects.

Reasons for the rise in temperature

The body is struggling with something unfavorable and foreign: bacteria, viruses, protozoa. Any inflammatory process in a single organ, whether it be stomatitis, lactostasis in lactating women, pyelonephritis, tonsillitis, inflammation of the appendages, and even caries, can lead to an increase in temperature.

Food poisoning or any other intoxication can also provoke a fever. Then the high temperature will be accompanied by a violation of the stool, vomiting, headache. High temperatures are also provoked by various endocrine diseases. It is worth donating blood for hormones when elevated body temperature is combined with weight loss, irritability, tearfulness, and fatigue. These may be symptoms of increased thyroid function.

If the body temperature stays at 38 degrees for a long time and at the same time the person does not feel a cold, it is urgent to do a fluorography to exclude tuberculosis of the lungs. This study is needed in without fail do every year for persons over 15 years of age.

Sometimes a slight increase in body temperature in women can be associated with the menstrual cycle: when ovulation begins, the body temperature rises, but with the onset of menstruation it returns to normal. In this case, there is no cause for concern.

But sometimes it happens that visible reasons to increase body temperature is not. Analyzes are normal, no symptoms of a cold are observed. However, in the body, nothing happens just like that. A prolonged rise in temperature (slightly above 37) can raise the suspicion of problems in the hypothalamus: the thermoregulatory center, which is responsible for the constancy of body temperature. This can happen at any age, but most often occurs either at the beginning of puberty, or by the time the first menstruation appears and a little later. Along with elevated temperature, adolescents are worried about headaches, insomnia, fatigue and irritability, and signs of scoliosis are noted.

How to lower the temperature?

Firstly, there is no need to panic and seek to lower the temperature if it does not exceed 38 degrees. In this case, bed rest and plenty of fluids will suffice. If the temperature is above 38 degrees, you need to look at the state, because for each person the critical body temperature is different. General recommendation is as follows: when the temperature is tolerated quite easily, it is better not to bring it down to 38.2-38.5. If at the same time your head hurts, you are worried about severe chills, or you “twist” your joints, you can take medicine. Regular aspirin has a good antipyretic effect. To avoid side effects, it needs to be crushed before taking or just chew it thoroughly and drink it down mineral water or milk.

Of course, if a child has convulsions with an increase in temperature, it must be lowered without waiting for 38. It should be noted that any case of febrile convulsions requires an in-depth examination by an epileptologist and the attention of an osteopath. If the mercury column has reached the level of 38, in any case, this is a reason to call the local doctor: it is necessary to examine the patient and find out the causes of the fever.

In order to alleviate the patient's condition without medication, you can make cold compresses on the forehead and wiping the body with warm water. And you need to wipe it so that droplets of liquid remain on the skin. It is their evaporation that causes the cooling of the body. If a child is sick, then it is better not to do a vodka-vinegar rubdown. A strong odor can cause spasm respiratory tract, and the components of such a solution can be absorbed through the skin and increase intoxication. You can wet woolen socks with warm water and put on the child. As the socks dry out, the body temperature will drop significantly. If the legs are cold, then you need to put on dry warm socks and massage the foot and fingers. This will help reduce vasospasm and lower the temperature.

As a drink at elevated body temperature, alkaline mineral water with a low percentage of mineralization and ordinary boiled water, as well as cranberry, currant, sea buckthorn and lingonberry fruit drinks are perfect. The latter, by the way, contains acetylsalicylic acid (aspirin).

When should you call an ambulance?

An elevated body temperature for more than 3 days is in any case a reason to see a doctor, but sometimes it is better not to hesitate and call an ambulance. This is necessary if:

Body temperature reached 39.5 and above.
High temperature is accompanied by vomiting, blurred vision, stiffness of movements, muscle spasm in the cervical spine, when the patient cannot tilt his chin to his chest.
Hyperthermia is accompanied by pain in the abdomen.
In a child under 10 years of age, a high fever is accompanied by a barking dry cough. These may be symptoms of an inflammatory narrowing of the larynx, the so-called laryngotracheitis or false croup.
The child has a seizure.
The body temperature rises sharply to 38 degrees in a child under 6 years of age who previously had convulsions with a fever.

Our expert - candidate of medical sciences, neuropathologistMarina Aleksandrova.

If you are sure that your thermometer is not broken, then there must be some other reason for the temperature rise. Consider the most likely options. Some should not cause you concern, but others may make you worry.

Everything is good

You - middle of the menstrual cycle(of course, if you are a woman). In many women, the temperature usually rises slightly during ovulation and normalizes with the onset of menstruation. Return to measurements after 2-3 days.

Evening has come. It turns out that temperature fluctuations in many people can occur within one day. In the morning, immediately after waking up, the temperature is minimal, and by the evening it usually rises by half a degree. Go to bed and try to measure the temperature in the morning.

You recently went in for sports, danced. Physically and emotionally intense activity increases blood circulation and warms up the body. Calm down, rest for an hour and then put the thermometer under your arm again.

You are slightly overheated. For example, you just took a bath (water or sun). Or maybe they drank hot or strong drinks, or simply dressed too warmly? Let your body cool down: sit in the shade, ventilate the room, remove excess clothing, drink soft drinks. Well, how? Again 36.6? And you were worried!

You've been through a lot of stress. There is even a special term - psychogenic temperature. If something very unpleasant happened in life, or maybe there is an unfavorable atmosphere at home or at work that makes you constantly nervous, then perhaps this very reason “warms up” you from the inside. Psychogenic fever is more often accompanied by symptoms such as general malaise, shortness of breath and dizziness.

Subfebrile condition is your norm. There are people for whom the normal value of the mark on the thermometer is not 36.6, but 37 ° C or even a little higher. As a rule, this refers to asthenic boys and girls, who, in addition to their graceful physique, also have a fine mental organization. Did you recognize yourself? Then you can rightfully consider yourself a "hot thing."

Time to see a doctor!

If you do not have any of the above circumstances and at the same time the measurements made by the same thermometer for several days and in different time days show inflated numbers, it is better to find out what this may be due to. Subfebrile temperature may accompany such diseases and conditions as:

Tuberculosis. With the current alarming situation with the incidence of tuberculosis, it will not be superfluous to do a fluorography. Moreover, this study is mandatory and it must be carried out by all persons over 15 years of age annually. This is the only way to reliably control this dangerous disease.

Thyrotoxicosis. In addition to elevated temperature, nervousness and emotional instability, sweating and palpitations, increased fatigue and weakness, weight loss against the background of normal or even increased appetite are most often noted. To diagnose thyrotoxicosis, it is enough to determine the level of thyroid-stimulating hormone in the blood. Its decrease indicates an excess of thyroid hormones in the body.

Iron-deficiency anemia. Iron deficiency is often due to occult bleeding, which is minor but persistent. Often their causes are heavy menstruation (in particular with uterine fibroids), as well as stomach ulcers or duodenum, tumors of the stomach or intestines. Therefore, it is necessary to look for the cause of anemia.

Among the symptoms are weakness, fainting, pale skin, drowsiness, hair loss, brittle nails. A blood test for hemoglobin can confirm the presence of anemia.

Chronic infectious or autoimmune diseases, as well as malignant tumors . Typically, if available organic cause subfebrile fever is combined with other characteristic symptoms: pain in different areas body, weight loss, lethargy, increased fatigue, sweating. When probing, an enlarged spleen or lymph nodes may be detected.

Usually, finding out the reasons for the appearance of subfebrile temperature begins with a general and biochemical analysis urine and blood, X-ray of the lungs, ultrasound of internal organs. Then, if necessary, more detailed studies are added - for example, blood tests for rheumatoid factor or thyroid hormones. In the presence of pain of unknown origin, and especially with a sharp weight loss, consultation with an oncologist is necessary.

Syndrome of postviral asthenia. Occurs after ARVI-. Doctors in this case use the term "temperature tail". A slightly elevated (subfebrile) temperature caused by the consequences of an infection is not accompanied by changes in the analyzes and passes on its own. But, in order not to confuse asthenia with incomplete recovery, it is still better to donate blood and urine for tests and find out if leukocytes are normal or elevated. If everything is in order, you can calm down, the temperature will jump, jump and eventually “come to your senses”.

The presence of a focus chronic infection(for example, tonsillitis, sinusitis, inflammation of the appendages and even caries). In practice, such a cause of fever is rare, but if there is a focus of infection, it must be treated. After all, it poisons the entire body.

Thermoneurosis. Doctors consider this condition as a manifestation of the syndrome vegetative dystonia. Along with subfebrile temperature, there may be feelings of lack of air, increased fatigue, sweating limbs, seizures causeless fear. And although this is not a disease in its purest form, it is still not the norm.

Therefore, this condition must be treated. To normalize the tone of peripheral vessels, neurologists recommend massage and acupuncture. A clear daily regimen, sufficient sleep, walks on fresh air, regular hardening, sports (especially swimming). Often a stable positive effect gives psychotherapeutic treatment.

Everyone knows that 36.6 is a normal temperature for most people. Can a temperature of 37.3 be an individual norm? What factors determine the temperature fluctuation within 35.5 and 37.5? And what should be cause for concern and treatment to the doctor?

What does "norm" mean?

There is an established opinion that a body temperature of 36.6 degrees is the physiological norm for all people. In fact, this is not entirely true: individual temperature norm can vary for each person in the range from 35.5 to 37.5 degrees. It depends on many factors: the physiological state of the body, the level of physical activity, hormonal background, gender, age and even condition environment: time of day, room temperature, humidity level.

You can conduct a simple experiment and measure your temperature throughout the day. You will notice that in the morning (between 4 and 6 o'clock) the body temperature will be the lowest, and after 17.00 to 23.00 the highest. It must be remembered that healthy person temperature fluctuations of half a degree throughout the day is quite normal.

In addition, it must be borne in mind that hormonal changes and emotional stress can lead to an increase in temperature. In women, temperature fluctuations of 0.5 degrees can naturally be observed throughout the menstrual cycle, in children, a temperature of up to 37.5 is considered normal, in older people, body temperature rises less than in younger people.

Therefore, before suspecting that you have any serious diseases, analyze the above factors, observe your condition in dynamics - perhaps the reason lies in one of them or a combination of several?

And if not?

If explicit explanation for elevated temperature if you don’t find it and it persists for several days or even weeks, and there are no other obvious health complaints, then do not delay a visit to a good therapist. There are a wide variety of diseases initial sign which is precisely a slight increase in temperature.

Of course, on the one hand, if, in addition to subfebrile temperature (the so-called temperature from 37.2 to 38 degrees), there are no other signs indicating the presence of a disease, it will be difficult even for an experienced therapist to put correct diagnosis On the other hand, the sooner the disease is detected, the easier it will be to cope with it. In any case, the doctor will recommend taking necessary tests and pass necessary examination to discover latent infection or a focus of inflammation.

Possible causes of fever

in the absence of other characteristic symptoms accompanying these infectious diseases, the doctor, most likely, will exclude at once. But there are many other diseases, the first, and often the only sign of which is just an increase in temperature just above 37 degrees. Let's consider some of them.

Inflammatory (infectious and non-infectious) diseases. The first disease in this series is tuberculosis. Very often, a dangerous disease for the first weeks is asymptomatic and, apart from subfebrile temperature, does not manifest itself in any way.

Chronic focal infection. Tonsillitis, andexitis, sinusitis, prostatitis, inflammation of the uterine appendages and other chronic inflammatory processes, which are localized in certain body. These diseases can occur without an increase in temperature, but in the case when a person's immunity is weakened, the body can react with an increase in temperature. In this case, the temperature returns to normal after the root cause is eliminated.

"Temperature tail". essence given state in the following: a person has been ill with a certain infectious condition and for some time (several weeks or even months) he may have a fever. In itself, this condition is not dangerous and will pass with time, but you should still be on the alert and not confuse the “temperature tail” with a possible relapse of the disease.

non-inflammatory diseases. Endocrine and immune diseases, diseases circulatory system and directly blood. This is a fairly large group of diseases, including diseases such as Sjögren's syndrome, myasthenia gravis, Addison's disease and many others. Among others, which, as you know, is characterized by a low content of hemoglobin in the blood. Against the background of weakened immunity, anemia is very often accompanied.

Questions from readers

Fourth day temperature 37 and 4 sore throat. no cough or runny nose October 18, 2013 Fourth day temperature 37 and 4 sore throat. no cough or runny nose. I don’t want to go to the hospital, I just can’t go to the hospital. help with what is being treated and what is this disease

Get your temperature right!

Before trying on various illnesses, make sure that you measure the temperature correctly. Many people think that this is quite simple, but most of us do it wrong, by placing a thermometer in the armpit with a familiar gesture from childhood. In fact, measuring the temperature in the armpit is the least accurate method. More accurate results are obtained by measuring the temperature in the oral cavity, ear canal or rectum.

And what is important, make sure that the thermometer is working, or even better, get an electronic thermometer - it is more accurate and absolutely safe.

Whether due to temperature. What are the causes of high fever without symptoms in an adult

normal body temperature

Why does body temperature rise?

Complications of fever

How to measure temperature correctly.

Calling an ambulance requires the following conditions:

In what cases should you take an antipyretic to reduce body temperature:

Folk remedies at elevated temperatures

Over-the-counter drugs used to lower body temperature.

Diseases occurring with a very high (above 39 degrees C) temperature.

Diseases occurring with a moderately elevated body temperature (37-38 degrees C).

The following diseases occur with subfebrile temperature:

The main tests and examinations that can be prescribed by a doctor if you have prolonged subfebrile condition (increased body temperature in the range of 37-38 degrees C).

Diseases are the most common cause of hyperthermia

Pathologies of the respiratory system

Diseases of the urinary and genital area

Digestive disorders

Other diseases

Influence of the hormonal background

Psychosomatics

Temperature increase in women

Diagnosis and treatment

What should the patient do?

Why is the temperature rising?

Why is the temperature rising?

Reasons for the rise in temperature

How to lower the temperature?

When should you call an ambulance?

Everything is good

Time to see a doctor!

What does "norm" mean?

And if not?

Possible causes of fever

Get your temperature right!

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