Sweating is the body’s means of regulating body temperature, when people are nervous and feel stressed, naturally sweating will be more, but if the sweating exceeds the amount needed to regulate body temperature, it is excessive sweating, which is due to the body’s sympathetic nerves are always in a hyperactive state, which is the basis of hand sweating. The body sweats a lot including armpit sweat, foot sweat, head sweat, and hand sweat is one of the most common types of sweat. Depending on the cause of hand sweating, it can be divided into primary hand sweating and secondary hand sweating. Secondary hand sweating occurs after certain diseases, such as hyperthyroidism, menopausal syndrome, mental disorders, and when undergoing certain endocrine treatments, increased hand sweating can occur. Primary hand sweating is caused by sympathetic hyperactivity and is more common than secondary hand sweating. Unlike normal people, hand sweating is “cold sweat”, so their hands are always wet and cold, and they are prone to frostbite in winter. Hand sweating affects learning, socializing and working, and even causes a lack of confidence in socializing, resulting in social phobia. Some lead to isolation, introversion, low self-esteem, etc. The “sweaty hands” patients’ descriptions and feelings about sweaty hands: embarrassment when shaking hands with people; constantly washing hands and wiping hands with handkerchiefs; hiding hands when eating with guests at the table; fear of touching others or hugging people; afraid to change money or exchange other items with others in public; avoiding cutting fingernails; difficulties with ties; sweaty hair and burning eyes; makeup. Wet, burning eyes; difficulty applying makeup; fear of moving paper; paper getting wet when writing; fear of playing musical instruments; inability to play golf and baseball; anxiety and nervousness; inability to concentrate; sweat getting the keyboard wet when typing. In the past, hand sweating was not considered a disease, but now, many people are beginning to have higher demands on their lives, and more and more people are coming to the clinic, paying more attention to the mannerisms they display in social situations and the impression they leave on people. The purpose of this is to clarify whether there is any infection in the body, and to do a chest X-ray to see if there is tuberculosis, because tuberculosis is also the cause of increased hand sweating, and to do T3 and T4, which are indicators of normal thyroid function, and blood sugar, to see if there is diabetes, through The above-mentioned tests are used to rule out the causes of hand sweating due to systemic diseases, so that you can be diagnosed with primary hand sweating and can proceed to the next step of treatment. The treatment of hyperhidrosis can be divided into medical therapy and surgical therapy. Some of the internal therapies are based on drug application or ionic immersion therapy, which can only achieve a short period of antiperspirant effect and are not effective. Oral sympathetic nerve suppressants, although partially effective for a short period of time, can have systemic side effects. The various folk remedies, medicine and acupuncture that have been passed down in the past have failed to improve the condition. To cure the disease, surgery is the only way to go so far. The traditional surgical method of cutting off the thoracic sympathetic nerve that innervates the sweat glands in the hands and armpits can immediately reduce or stop sweating in the hands and armpits, but it requires an incision about 20 cm long in each side of the patient’s chest wall, which is very traumatic, bleeding, painful and long for the patient to stay in the hospital. In recent years, these laborious and unappealing surgical methods have been gradually eliminated. Currently, the most effective method recognized both at home and abroad is the televised thoracoscopic thoracic sympathectomy. In this method, an incision of about 1 cm is made in each axilla, and the thoracic sympathetic nerve that causes hand sweating is cut accurately and quickly under the precise guidance of the thoracoscope and using a television monitoring system. The surgical result is immediate, and the incision is small and hidden, with no bleeding and very little recurrence. However, any surgery has varying degrees of risk and a certain percentage of complications. Possible complications of TV thoracoscopic thoracic sympathectomy include hemothorax due to chest bleeding or pneumothorax due to rupture of lung membranes and alveoli, but the incidence of these complications is less than 1%. The hospital stay is usually 2-3 days and the patient is discharged. The success rate of surgery for hyperhidrosis is over 98%. Most of the unsuccessful cases are due to the patient’s past history of pneumonia, trauma or other chest diseases causing lobe adhesions, which prevented the endoscope from seeing the sympathetic nerve and thus prevented the surgery from being completed. The recurrence rate after surgery for hyperhidrosis is only about 1%. The recurrence is often due to some adhesions during surgery, which prevent the nerve from being completely cut or the nerve from regrowing. After surgery for hand sweating, compensatory sweating may occur, meaning that the sweat that used to come out of the hand is replaced by sweat from other parts of the hand. In general, the palms of the hands are almost completely free of sweat after surgery, while the sweating of the arms, armpits, head and face is greatly reduced, and the sweating of the abdominal back and thighs will increase more or less after surgery. As for the feet, 40-80% of sweating may be reduced. This is more pronounced in the summer, but is generally not a major problem, with only a few patients having difficulty with compensatory sweating. If the number of sympathetic nodes destroyed during surgery is small, the compensatory sweating may be milder after surgery, but once it occurs, it cannot be undone in any way, and this is something that patients must understand before surgery. Another possible side effect is less facial sweating, drooping eyelids, and smaller pupils, which are much less common, but should be understood before surgery. The best time to treat hand sweating is during adolescence, when the symptoms are most pronounced. The symptoms of sweaty palms can be relieved immediately after surgery, and the success rate of surgery is high. If you reach the age of 40 or later, the surgery often becomes difficult and the failure rate increases due to diseases such as pleural adhesions or lung lesions. The “early” is not the better. Small children who are not yet physiologically mature are also not suitable for surgical treatment. Since the child’s growth and development has not yet stopped, and the pressure to go to school is not too great, the sweaty hands should not be enough to cause problems in life.