Hand and foot hyperhidrosis is a condition that is not a major obstacle to health. The symptoms are excessive sweating of the hands and feet, especially in summer, when the hands sweat so much that they even drip, causing a certain amount of distress to the patient’s daily work life. The incidence of hand sweating, regardless of gender, is more common in the East, with an incidence of about 1%, and in the subtropics the incidence can reach about 3%, of which about 12% have a family history. Sweating is the body’s means of regulating body temperature, when people are nervous and feel stressed, they will naturally sweat more, but if the sweating exceeds the amount needed to regulate body temperature, it is excessive sweating, which is due to the sympathetic nerves of the body 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. Hyperhidrosis is essentially a physical problem with no direct health consequences, and the need for surgical treatment depends entirely on the degree of distress caused by the sweaty hands. Too much hand sweating can seriously affect school, social life, and work and cause great distress. Sweaty palms in school children can cause them to wipe their hands when writing homework in order to avoid wetting their assignments, and the speed of sweating during exams can double; when playing the piano in talent classes, the keys get wet. As we grow older, this situation and the problem is getting bigger and bigger. When you grow up, you are afraid to shake hands with others, and even holding hands is a problem, causing emotional and social withdrawal, whether it is paperwork, external affairs, or drawing, electrician, etc. almost difficult to carry out. If you don’t have the problem, you don’t need treatment, but the bigger the problem, the more you need treatment. In traditional surgery, an incision of about 30 cm is made in the chest wall, and two layers of muscles in the chest wall are cut, and sometimes a rib is removed or cut. TV thoracoscopic thoracic sympathectomy is by far the most ideal and safest surgical procedure to treat hand sweating! Only a microincision less than 0.5cm in size is needed to be cut in one side of the armpit, a thoracoscope is placed to reveal the thoracic sympathetic nerve, and then the doctor selectively blocks the sympathetic ganglion after positioning it accurately, monitoring the skin temperature of both hands during the operation from a low rise of 2-3 degrees, and finally suturing the wound after the lungs expand back to normal, thus completing the operation on one side. Subsequently, the surgeon completed the thoracic sympathetic nerve block on the other side using the same method.