An adult female with a temperature of 37.3°C may have a mild hypothermia because a normal body temperature does not exceed 37.2°C. Therefore, 37.3°C in an adult female is a fever. Mild fever is usually seen in colds, where the patient is usually mildly ill. In addition, it can also be seen in mild bacterial infections, such as urinary tract infections. And some non-infectious diseases, such as the absorption of necrotic material from tumors, can also present with hypothermia. In addition, mild fever can occur during the active phase of rheumatic and rheumatoid arthritis. And if a female patient is in the ovulation period, a mild increase in body temperature may also occur and is normal. Therefore, when the patient’s body temperature reaches 37.3℃, she should rest in bed and keep the room environment quiet, moderate temperature and well ventilated. If you sweat a lot, you should change your clothes and wipe your body with warm water for physical cooling.