Diabetic patients with fever should actively control blood sugar, reduce heat treatment, symptomatic treatment for the cause of fever, has been bad need to seek medical attention as soon as possible to find the cause. 1. Active control of blood sugar: diabetic patients with fever, the body stress, stimulate the secretion of a large number of glucagon, resulting in a rise in blood glucose or large fluctuations, there may be ketoacidosis and other acute complications. Therefore, we should continue to take oral hypoglycemic drugs, such as metformin, gliclazide, repaglinide, etc., or inject insulin. 2. Antihyperthermia treatment: Physical hypothermia, such as drinking more water, is used when the body temperature is lower than 38℃. If the temperature is over 38.5℃, medication should be used to reduce the fever, such as ibuprofen and acetaminophen. 3. Symptomatic treatment for the cause of fever: diabetic patients with low immunity, the most common infectious diseases and fever, such as bacterial infections, fungal infections, urinary tract infections, etc., but also rheumatoid immune system diseases, blood diseases, tumors, and so on, you can do blood tests and other tests to determine the symptomatic treatment. Diabetic patients with fever must consult a doctor in time to clarify the cause of the disease and further treatment, so as not to delay the condition.