Why does the temperature rise?
Even in childhood, we all firmly understood that a healthy person should have a body temperature of 36.6 * C. In fact, this statement is only partly true. Yes, indeed, 36.6 * C is the temperature at which all biochemical processes in the human body proceed in an optimal way, but each person is unique and has his own individual physiological features. Therefore, modern medicine no longer limits the value of a person's normal temperature to the former very rigid framework - in our time, doctors consider the lower limit of the norm as 36 * C and the upper limit - 37.4 * C. Naturally, we are talking only about cases when such a temperature is kept in a person for years and is not accompanied by any manifestations of the disease. In all other cases, a rise in temperature above the mean norm indicates that the body is currently struggling with something.
Why does a person have a fever?
The high temperature itself is not a disease, but the result of intensive work of the body’s immune system.By activating this defense mechanism, the body thus tries to resist the adverse external or internal factor. As medical practice shows, a person's body temperature can rise for a variety of reasons, ranging from flu or other infectious diseases to banal overheating in the sun or the eruption of milk teeth. Considering the fact that there are a great many reasons for a rise in temperature, we consider only the most common ones.
Why the temperature can be 39 * C and higher?
- Pneumonia is almost always accompanied by a very high temperature, which sometimes cannot be brought down for a long time even with the help of the most modern antipyretic drugs. Inflammation of the lungs is characterized by pain and wheezing in the chest, shortness of breath, and a very troublesome patient with a frequent dry cough.
- Flu. Many forms of influenza begin with a sharp, sudden rise in temperature, accompanied by severe aching in the joints and muscle pain, and other symptoms of the disease (runny nose, coughing, sneezing) may not appear even a few days after the onset of the disease.
- Angina.Classical acute angina is characterized by a sharp rise in temperature and the simultaneous occurrence of severe pain in the throat.
- Measles and chicken pox (chicken pox) begin with a sharp rise in temperature. Bubbles filled with fluid (vesicles) appear on the body only on the second or third day after the onset of the disease.
- Inflammation of the kidneys (acute pyelonephritis). Against the background of a sharp rise in temperature in a patient, the face swells, pressure rises, pain in the back and side (in the kidney area) occurs, urine tests show the presence of protein in it.
- Infectious intestinal diseases (dysentery, cholera, salmonellosis, paratyphoid fever). In addition to high temperature, they are characterized by abdominal pain, vomiting, nausea, diarrhea.
- Botkin's disease (hepatitis A). In addition to high temperature, this disease is characterized by staining of the proteins of the eyes, skin and mucous membranes in a characteristic yellow color.
Why the temperature can rise to 38 * C?
Up to 38 * C, the temperature may rise as a result of exacerbation of a chronic disease:
Why can the temperature be slightly elevated?
At a slightly elevated (subfebrile) temperature, the following diseases occur:
- Many diseases of the genitourinary system, both infectious and non-infectious: cystitis, prostatitis, ureaplasmosis, gonorrhea and syphilis.
- Various thyroid diseases, such as diffuse goiter or thyrotoxicosis.
- Many oncological diseases are accompanied by a constant slight increase in temperature.