Human body temperature sometimes becomes high, which may be due to physiological factors or diseases, such as infectious diseases, connective tissue diseases, and so on. 1. Physiological reasons: It may be affected by environmental factors, for example, when the temperature is relatively high, the body temperature may also rise. It may also be due to exercise, eating, etc., but the body temperature fluctuates within the normal range and does not require special treatment. 2. Infectious diseases: such as viral, bacterial or mycoplasma infections, but also tuberculosis infections may cause an increase in body temperature, and the treatment methods are also different. For example, bacterial infections often require the use of antibacterial drugs, such as amoxicillin and cefadroxil. 3. Connective tissue diseases: for example, rheumatism, systemic lupus erythematosus, etc., may lead to high body temperature, fever symptoms. For example, if rheumatism causes fever, it is often necessary to take ibuprofen, celecoxib and other non-steroidal anti-inflammatory drugs. These are only some of the common causes. If there is an unknown cause of fever, you should consult a doctor for a clear diagnosis and standardized treatment as prescribed by the doctor. All of the above drugs need to be instructed by a doctor to use medication, the patient should not be arbitrarily used on their own.