Sweating while sleeping is considered by Chinese medicine to be a Yin deficiency leading to night sweating (abnormal sweating after going to sleep and stopping sweating after waking up), which is a kind of disease characterized by abnormal excretion of sweat. Sleeping all over the sweat is actually a typical performance of night sweating, night sweating is the theory of traditional Chinese medicine sweating evidence of a performance to fall asleep after sweating abnormally, waking up after sweating as a characteristic of a disease. The main cause of night sweating is yin deficiency, yin deficiency is Yang Sheng, false heat within the birth of the yin gas is empty, sleep is the guard gas into the yin in the virtual, the table is not guarded, the muscle surface is not dense, within the steam heat, forcing the Jin leakage of the sweat. When you wake up, the gas is fixed on the surface, the Xuanfu is closed and the sweat stops in the yin. Night sweating is a relatively common disease, the serious condition may bring trouble to life. It is recommended that patients with night sweats go to a regular hospital as soon as possible, under the guidance of a professional doctor to prevent further aggravation of the condition and affect the quality of life.