Sweating as soon as you sleep is mainly considered to be related to hypocalcemia, tuberculosis, autonomic dysfunction, hyperthyroidism, etc. It is recommended to choose the treatment plan according to the cause. 1. Hypocalcemia: children are more prone to this condition than adults. When the concentration of calcium ions in the blood decreases, it will lead to increased neuromuscular excitability, causing increased secretion of sweat glands, which will lead to sweating while sleeping, often accompanied by easy cramps. 2. Tuberculosis: If there is tuberculosis, such as pulmonary tuberculosis or lymphatic tuberculosis, renal tuberculosis, etc., the patient can appear night sweating phenomenon, thus sweating in bed. Patients are often accompanied by low fever, fatigue, emaciation and other manifestations. 3. Autonomic nerve dysfunction: If there is autonomic nerve dysfunction, it may cause abnormal secretion of sweat glands, so the symptom of sweating in bed occurs. 4. Hyperthyroidism: Increased secretion of thyroid hormones and vigorous tissue metabolism may cause increased secretion of sweat, resulting in the symptom of sweating in bed. It can also be accompanied by irritability, fear of heat, excessive food but emaciation and other manifestations. In addition to the above, there are other conditions that may lead to sweating in bed, such as high temperature of the sleeping environment, the blanket is too thick, etc. If the symptoms do not improve after improving the habits, it is recommended to go to the hospital for examination, and follow the doctor’s instructions for timely and targeted treatment, so as not to delay the course of the disease.