Usually healthy adults in a quiet state, the normal temperature of the anal temperature is about 36.5 ~ 37.5 ℃, anal temperature is higher than the oral temperature of about 0.3 ~ 0.5 ℃, if more than this number, it is called fever. Fever should first be cooled down disposition, such as physical cooling ice cap, can also be oral antipyretic drugs, such as ibuprofen, etc.; and then to actively identify the cause of the disease, the cause of the symptomatic treatment. The cause can be divided into infectious fever and non-infectious fever, infectious fever, such as upper respiratory tract infection, acute pyelonephritis, acute bacillary dysentery, etc., you can improve the blood test and other tests, give anti-infectious treatment, such as amoxicillin capsules. Non-infectious fever, such as leukemia, rheumatic fever, etc., this need to actively treat the primary disease, from the essence to solve the problem of fever. The above mentioned drugs need to be applied under the supervision of a physician. If the patient measured anal temperature is 39.7 ℃, is not normal, it is recommended to go to the hospital for examination, combined with other clinical symptoms, give diagnosis and treatment.