Sweating regulates body temperature, regulates water and electrolyte balance, eliminates toxins and is beneficial to health. The average healthy person can eliminate 500-1000mml of sweat per day. If you sweat when the average person doesn’t, and you sweat more when others sweat less, there may be a problem with the sweating system, also known as hyperhidrosis. This may be simply excessive sweating without any other disease, also called primary hyperhidrosis. This part can be cured by surgery. The other part of excessive sweating is caused by other diseases. For example, diabetes mellitus, endocrine diseases such as hyperthyroidism, as well as high blood pressure, menopause, and the role of paranephric hormones may occur. This, in turn, is called secondary hyperhidrosis, which means it is caused by a disease. In addition, there are also cases of sweating on half of the body, hemiplegia patients, the unconscious side will sweat excessively; and the brain nervous system trauma, tumor, inflammation, due to the sympathetic nerve stimulation, can also cause hemiplegia hyperhidrosis. There are also special conditions that may cause hyperhidrosis. For example, taking cold medicines to reduce fever, shock can cause a lot of sweating. In addition, young children sweat more easily because of their size. Of course, in cases of cerebral anemia, the flow of blood to the brain is impaired and the thermoregulatory center is stimulated, making excessive sweating even more likely. This part has to be cured by treating the primary disease. In primary hyperhidrosis, the sweating is often localized. It occurs when there is mental tension, depression or emotion. This symptom manifests itself in the palms of the hands, soles of the feet, armpits, forehead, tip of the nose, etc., where sweating occurs easily. For example, when traveling on an airplane or driving a car, the palms of the hands sweat; when talking in front of the public, the face sweats. Primary hyperhidrosis can be cured by surgery. Diagnosis of hyperhidrosis: there is no uniform diagnostic standard for hyperhidrosis. 2004 American Academy of Dermatology John Hornberger organized a collaborative group of experts from more than 20 institutions to develop a diagnostic reference standard. The diagnosis is confirmed when hypersecretion of sweat glands is visible to the naked eye for more than 6 months without any obvious cause, and when two of the following conditions are met: (1) Bilateral sweating is symmetrical. (2) Episodes occur at least once a week. (3) Age of onset is less than 25 years. (4) A positive family history. (5) No excessive sweating during sleep. (6) Interference with daily work life. If accompanied by fever, night sweats, and weight loss, the possibility of secondary hyperhidrosis should be noted. Treatment can be divided into internal and surgical therapies; the internal therapy for hand sweating has oral medication and topical medication, but its effect is short-lived and has side effects, and it cannot be treated fundamentally for a long time; recently, some people have also tried to beat botulinum toxin (BOTOX) locally, but its effective time is only a few months, therefore, the most effective way to treat hand sweating is surgical treatment at present. The traditional surgical method is to cut from the center of the back and remove the second and third sympathetic ganglia on both sides, which is a long, traumatic and long recovery time, with a 5-7 cm wound on each side and severe pain. The current surgical method is to use thoracic endoscopic cauterization, that is, in each side of the armpit cut about 1.5 cm small opening, the thoracoscope into the chest cavity, to find the sympathetic nerves innervating the sweat glands, gently a “burn” the nerve is cut off, and the sweat is also followed by a “shutdown”. The surgery is performed under general anesthesia, which is short, less dangerous, quicker recovery, less painful and less expensive. Primary hand sweating is the best indication for surgery, with an effective rate of nearly 100%; primary head sweating is second, with an effective rate of about 97%; primary axillary sweating has a lower effective rate of about 70-75%; hyperhidrosis in other parts of the body is not suitable for surgical treatment at present. Complications: The most common complication of surgical treatment of hyperhidrosis is metastatic, compensatory hyperhidrosis, that is to say, after surgery, the original sweating area sweating stops or significantly reduced, but other parts of the body sweating increased compared with the preoperative. The most common areas are the back and forehead. Primary hand sweating after surgery, the incidence of metastatic, compensatory hyperhidrosis is relatively low, the degree is also less severe, generally will not bring new worries to the patient; primary head sweating after surgery, the incidence is relatively high, the degree is also slightly heavier, will bring new worries to a small number of patients, generally with the passage of time, the majority of patients will be gradually reduced.