If the armpit or mouth temperature is 37-37.5 degrees, it is an abnormal body temperature; if the anal temperature is the above temperature value, it is a normal body temperature. Normal measurement of body temperature, usually axillary temperature, the normal temperature of the human body is 36 ~ 37 degrees, if the body temperature is 37.3 ~ 38 degrees for low fever; if the anal temperature, the normal 36.5 ~ 37.7, the body temperature is 37 ~ 37.5 degrees, belongs to the normal range. Body temperature is a dynamic process of change, related to age, day and night, exercise, environment, etc. It is a normal phenomenon, but generally not higher than the normal range, the occurrence of hypothermia may be caused by acute upper respiratory tract infection, heat stroke, tuberculosis and other diseases. Symptoms of hypothermia, usually can drink more water, timely to the hospital to confirm the diagnosis, find out the cause, timely targeted treatment.