Sweating while sleeping at night may be caused by tuberculosis disease, endocrine disease and so on, or it may be caused by the high temperature outside. 1. Tuberculosis: If a patient suffers from tuberculosis, he will have symptoms such as sweating, fatigue and low fever when he sleeps at night. 2. Endocrine diseases: If the patient suffers from hyperthyroidism, which leads to an elevated metabolic rate, sweating will also occur easily when sleeping at night. In addition, when the patient suffers from diabetes, hypoglycemia and other diseases, it is also easy to have the symptom of sweating while sleeping. 3. High outside temperature: If the surrounding temperature is too high when sleeping at night and the blanket is too thick, it may also lead to sweating while sleeping. If the patient has the condition of sweating while sleeping, and the condition is not relieved even after eliminating the physiological causes, he should go to the hospital in time for the relevant examination, and give the corresponding treatment and therapy after clarifying the cause of the condition.