The causes of night sweating include physiological and pathological, physiological causes are environmental factors, pathological causes are hyperthyroidism, plant nervous system dysfunction, etc., should go to the hospital in time to clarify the cause of the disease. 1. Physiological: in a hot environment, normal people will sweat, so the patient is located in the environment of high temperature or dry lower body sweating, which is a normal phenomenon, it is recommended that you can open the window ventilation and so on to alleviate the phenomenon of sweating. 2. Pathologic: (1) Hyperthyroidism: thyrotoxicosis caused by excessive production of thyroid hormone by the thyroid gland itself, which is mainly characterized by hyperphagia, emaciation, palpitations and sweating. It can be treated by taking antithyroid drugs such as metamizole and prothioxythiophene. (2) Plant nerve dysfunction: Plant nerve dysfunction is a group of syndromes triggered by prolonged mental tension, excessive psychological pressure and anger, and mental stimulation, which mainly include fainting, abnormal blood pressure and sweating. It can be improved by glutamine, vitamin B1 and so on. It is recommended that patients with the symptoms of night sweating, it is best to go to the hospital in time, to clarify the cause of the disease, under the guidance of the doctor for treatment.