Many kinds of diseases can cause frequent sweating and are not limited to 4. Some common ones are hyperhidrosis, hyperthyroidism, rickets, diabetes, tuberculosis, and so on. 1. Hyperhidrosis: mostly primary, a small number of may also be secondary to other diseases. It can be manifested as local or generalized skin symptoms of excessive sweating. 2. Hyperthyroidism: a disease caused by hyperthyroidism, which can be manifested in the clinic as protruding eyes, sweating, agitation and irritability. 3. Rickets: a disease caused by vitamin D deficiency, the symptoms of which are not only excessive sweating, but also square skull, chicken chest, X-shaped legs, as well as short temper, irritability and so on. 4. Diabetes mellitus: a disease caused by abnormal blood glucose concentration, the instability of blood glucose may lead to autonomic nervous system disorders and other complications, and there may be frequent sweating symptoms. 5. Tuberculosis: belongs to a chronic consumptive disease, is also a contagious disease, in the clinic will be manifested in the afternoon hot flashes (a burst of fever), sweating and coughing and so on, of which sweating is mainly based on night sweating. Excessive sweating may also occur under the influence of high ambient temperature, mental factors, diet and other physiological factors. For recurring sweating, it is necessary to go to the regular hospital in a timely manner, after a clear diagnosis and standardized treatment in accordance with the doctor’s instructions.