A high fever of 38.8 degrees Celsius is a moderate fever, whether it is serious or not varies from person to person and needs to be combined with clinical manifestations. Fever 38.8 degrees Celsius is a kind of indicator, can not judge the severity of the disease, but also combined with clinical manifestations, such as mental, sleep, diet, activity, etc., if obviously affected by the more serious. Body temperature 38.8 degrees Celsius is usually caused by disease, causes such as infection, autoimmune, tumor, etc., actively treat the original disease. Simple body temperature of 38.8 degrees Celsius, there is no physical discomfort, generally not serious, drink more water, more rest, if the temperature does not go down available antipyretic drugs, such as ibuprofen, acetaminophen and so on. If the fever causes discomfort, consult a doctor for a clear diagnosis of the cause of the illness, and do not take medication without authorization, so as to avoid adverse consequences.