Hand sweating is a fairly common type of functional localized abnormal hyperhidrosis of unknown origin. Hyperhidrosis is not a disease, but rather a functional localized abnormal hyperhidrosis. Hand sweating is the focus of hyperhidrosis treatment because it is more pronounced and has a greater impact. The cause of hyperhidrosis is still unclear, but it is medically believed to be excessive secretion of sweat glands caused by excessive sympathetic hyperactivity. Many factors, such as climate, season, and outside temperature, emotional changes, and strenuous activity, may be associated with hyperhidrosis. In general, most patients have more severe symptoms in the summer and relatively less severe in the winter months. In addition, hand sweating may be accompanied by skin maceration infections of the hands, which can lead to a variety of skin lesions. Hyperhidrosis is not a disease, but rather an overactive sympathetic nerve that often causes distress at school, work or socially, and is treated. People with hyperhidrosis tend to have wet palms most of the time, and chronically wet hands often cause easy peeling, which is an eyesore. Surveys show that 3 out of every 1000 people suffer from severe hand sweating. The problem of hand sweating is more prevalent in China, especially in the southern regions of Fujian, Guangdong, Zhejiang and Taiwan, but on the other hand, not many people are aware of hand sweating and seek medical attention. The symptoms of hand sweating can be clinically graded, for example, the degree of hand sweating is divided into three levels from mild to severe: mild as moist palms; moderate as sweating through a handkerchief; and severe as sweating in the form of dripping beads. Hyperhidrosis is mostly considered if most of the following characteristics are met: adolescent onset, family history, bilateral symmetry of hyperhidrosis, triggering factors such as emotion, exercise, and heat; and no sweating during sleep. Thoracoscopic thoracic sympathectomy is the only effective minimally invasive method for the treatment of hand sweating. The procedure is performed under general anesthesia with a small axillary incision and can be discharged 2-3 days after surgery. Indications: Moderate and severe hand sweating that has been diagnosed clearly.