Sweating while asleep may have physiological and pathological causes such as hyperthyroidism, tuberculosis patients may appear such a situation. 1. Physiological factors: the day the temperature is too high, the space is too confined, there is no ventilation, the body temperature will rise, will lead to the phenomenon of falling asleep sweating. Normally, you should keep the space you are in ventilated and control the temperature. 2. Pathological factors: (1) hyperthyroidism: hyperthyroidism patients due to rapid metabolism, usually secrete too much thyroxine, too much thyroxine leads to excessive nerve excitability, excessive nerve excitability easily caused by the phenomenon of falling asleep sweating. (2) Tuberculosis: Tuberculosis patients are usually accompanied by the phenomenon of sweating in their sleep, because the tuberculosis germs stimulate the central nervous system, resulting in nerve excitation to produce a large amount of sweat. For patients who fall asleep sweating, such as no relief, should be timely to the hospital targeted examination to clarify the cause of the disease after treatment.