Primary palmar hyperhidrosis is a kind of benign disease characterized by abnormally increasing sweat. Various treatments for it exist in clinic currently and the one of them is endoscopic thoracic sympathectomy. But due to the different choice of surgery path, surgery method and the way or the level to block the sympathetic chain, the surgical curative effect and the incidence of postoperative complications vary hugely. This review provides an update report on the surgery method and the way or the level to block the sympathetic chain to treat palmar hyperhidrosis by endoscopic thoracic sympathectomy.
