Why is there a low grade fever and a high grade fever, is it a low grade fever that is difficult to

Fever is medically called fever.

38 is low-grade fever.

38,<39 is moderately hot.

39 41 is high fever.

41 is ultra-high fever.

In terms of fever alone, high fever is definitely more harmful to the body than low fever, but there are many reasons for fever, fever is just a symptom, it depends on what the primary disease causing fever is, so as to carry out a good **, as for whether it is good or not, it is also necessary to take this primary disease as the standard.

A low-grade fever is a continuation of a high fever, and it is a lesion with a high fever that is more severe and more difficult to treat, so it is a worse condition.

I don't know how to join in the fun!

This depends on the specific situation, and I can't say which one is easy to treat.

According to the body temperature at the time of fever, it is divided into high fever and low fever, and the first is not high fever and low fever, but the disease that causes fever.

A body temperature higher than normal is called fever, a degree is a low fever, a temperature of 38-39 degrees is a moderate fever, a temperature of 39-40 degrees is a high fever, and a temperature above 40 degrees is an ultra-high fever.

Body temperature refers to the temperature inside the body. The armpit temperature of normal people is 30-37 degrees, the oral temperature is higher than the armpit, and the rectal temperature is higher than the oral temperature.

The temperature of the human body is relatively constant, and the body temperature of a normal person fluctuates slightly within 24 hours, generally no more than 1 degree. In the physiological state, the body level is slightly lower in the morning and slightly higher in the afternoon. After exercise, eating, before menstruation or during pregnancy, the body temperature is slightly higher, while the body temperature is lower in the elderly.

Fever feels hot and burns until you are confused, have convulsions, and sometimes feel cold.

A person's normal body temperature is about 36 8, and a body temperature of more than 38 5 (adults) or 39 (children) is considered a high fever. The symptoms are: hot forehead, dizziness, and in severe cases, pain all over the body.

In fact, a high fever is not a disease in itself, but a symptom that alerts your body that there may be a disease. In fact, heat dissipation is good for the body, and this internal defense has the function of destroying foreign germs. If the temperature doesn't rise too high, let it dissipate heat naturally, which will help eliminate toxins.

The difference between high fever and low fever is that high fever refers to a fever with a body temperature greater than 39, while low fever is a body temperature greater than 37 and less than 38. The difference between high fever and low fever lies first in the difference in temperature, and secondly, the diseases represented behind high fever and low fever are different, such as high fever, generally speaking, it is common in pneumonia, pyelonephritis, bacillary dysentery, etc., which is a disease of high fever. Low-grade fever is most common in tuberculosis, as well as rheumatic diseases, such as rheumatoid arthritis, lupus, etc., which are generally low-grade fevers.

Therefore, through the judgment of body temperature, some diseases can be preliminarily divided, and the diagnosis cannot be completely based on body temperature, which can only be determined in combination with other auxiliary examinations.

The temperature of the human armpit fluctuates between 38 degrees Celsius, which is called low-grade fever. What causes low-grade fever? It is usually divided into physiological and pathological conditions.

Physiological conditions refer to the absence of significant organ dysfunction in the human body. For example, menopausal women may experience physiological low-grade fever due to changes in hormone levels in the body. or in pregnant or lactating women, but more often for pathological reasons.

Pathologic causes are common in both infectious and noninfectious causes. The infectious cause is a low-grade fever caused by chronic inflammation in the body. For example, tuberculosis, chronic renal pelvis, nephritis, chronic sinusitis, pelvic inflammatory disease, abdominal or biliary tract infections.

Noninfectious conditions are common in autoimmune or immune system disorders, such as systemic lupus erythematosus and hyperthyroidism. The ** of low-grade fever can be divided into two categories, the first category is infectious diseases, and the second category is non-infectious diseases, as follows:

1. Infectious diseases: They can be further classified according to different pathogens, because whether it is bacterial infection, viral infection, fungal infection, or parasitic infection, it can cause low-grade fever. Therefore, if there is a low-grade fever that does not go away, it should be investigated and screened for various pathogens.

From the perspective of low-grade fever caused by infectious causes, special attention should be paid to the lesions of infection, because the lesions are sometimes more obvious, such as pneumonia, which can be indicated by radiographs. However, sometimes the lesion of infection is more insidious, such as endocarditis or liver abscess, and it takes more time to clarify;

2. Non-infectious diseases: such as low-grade fever caused by immune disorders, tumors, and blood diseases, all need to take time to distinguish one by one.

The reason why the sun has been low is 1Extrinsic factors. Long-term exposure to a relatively cold or humid environment, due to insufficient heat** or rapid body heat loss, the human body can not adjust in time, resulting in continuous low temperature.

2.Intrinsic factors.

Endocrine and metabolic diseases. If you have diseases such as hypothyroidism and adrenal insufficiency, you will experience persistent hypothermia. Because the secretion function of the thyroid gland and adrenal glands is impaired, the production of heat in the body and the heat dissipation cannot be balanced.

Serious infections develop. For example, shock, sepsis, and may be accompanied by symptoms such as pallor.

Malnutrition in the elderly. The thermoregulatory function of the elderly is relatively weak, and if it is coupled with malnutrition and insufficient calories, there will also be clinical symptoms of continuous low temperature.

It's all serious, and it can cause other diseases, so can't you be careless?

It must be a high fever that is severe, and it will burn out the brain after a long time!!