37.5 degrees Celsius in adults is not normal if it is an axillary and oral temperature. It is normal if the anal temperature is measured. The normal axillary temperature in adults is 36 to 37 degrees Celsius. Oral temperature is 36.3 to 37.2 degrees Celsius. Anal temperature is 36.6 to 37.7 degrees Celsius. Fever can be physiologic, such as a small increase in body temperature after exposure to the sun or during ovulation in women. Pathological fever can be caused by bacterial or viral infections, hyperthyroidism, vascular embolism, hemorrhage, and connective tissue disease. When the fever to ensure that rest and drinking water, can use physical cooling such as water to wipe the body, or the use of drugs to lower the temperature such as ibuprofen, etc., need to pay attention to the contraindications before taking. There are not adapted to go to the hospital as soon as possible for treatment, so as not to delay the condition.