The 27-year-old young man Yang, as long as a nervous or too excited, his hands will emerge wet sweat, playing computer will get wet keyboard, writing materials will get wet paper, shaking hands with others will feel sticky, and every day from time to time sweating makes him very annoyed, he suffers from what is medically known as “hand sweating”. The actual sweaty palms of the hands from time to time, many like Yang Mou hand sweat patients, resulting in psychological inferiority, seriously affecting their daily life and social interaction. The actual sweating of the hands is caused by the abnormal excitement of the sympathetic nerve, according to the degree of sweating can be divided into mild, moderate and severe, severe patients can secrete sweat beads visible to the naked eye, serious people will drip along the fingers, giving people the feeling of “sweating like rain”, the symptoms are sudden and intermittent, each attack lasts 5-30 minutes. The symptoms are sudden and intermittent, with each episode lasting 5-30 minutes. The traditional treatments for sweating disorder at home and abroad include internal medicine, botulinum toxin A blocking therapy, iontophoresis, and thoracic sympathectomy. Internal conservative treatment is ineffective and the symptoms are prone to recurrence. Clinically, thoracoscopic minimally invasive thoracic sympathectomy is the most respected and recognized as the most effective treatment method, but it requires 1-2 surgical incisions on both sides of the chest wall, and although the incisions are small, many patients still struggle with the scars left on both sides of the chest, which obviously affects the aesthetics, and some patients also experience chronic wound pain. Based on the traditional thoracoscopic thoracic sympathetic nerve chain dissection, we took the lead in completing the first transumbilical single-port thoracic sympathetic nerve chain dissection in Shanghai, and Yang, a young man who was troubled by hand sweat, had the honor to be the first beneficiary in Shanghai. The operation was performed using minimally invasive surgery through the umbilicus, and took only one hour to complete, leaving only a hidden scar at the navel after the operation, so the incision was invisible to the general public unless special attention was paid. After the operation, Yang felt very good, said his hands no longer sweat like before, he was relieved after the operation. When he saw the wound at his belly button, even he couldn’t believe it, he couldn’t see the incision if he didn’t pay special attention. On the second day after the surgery, the chest was rechecked and Yang was happily discharged from the hospital and went home. This surgery was based on the experience of Dr. Weisheng Chen, a colleague of Dr. Fu who I have worked with for more than 2 years, and who has extensive experience in this type of surgery. The post-operative result is good and the recovery is fast, and the patient can be discharged after 1-2 days of post-operative review. Undetectable umbilical incision