There are more surgical treatment methods for hemorrhoids, which are summarized in the following categories: 1. Sclerotherapy: the use of sclerotherapy injections, so that the hemorrhoids gradually shrink, harden and reduce the size of the hemorrhoids, to play the purpose of surgical treatment. It is less traumatic and more effective for first and second stage internal hemorrhoids; 2. Ligature treatment: the nucleus of internal hemorrhoids as well as the suprahemorrhoidal area are ligated by ligatures, which gradually make them ischemic, necrotic and fall off, so as to achieve the purpose of treatment; 3. Suprahemorrhoidal mucosal circumcision, selective suprahemorrhoidal mucosal circumcision: namely PPH, TST, using an anastomosis to selectively remove the suprahemorrhoidal tissue circumferentially or partially; 4. External peeling and internal ligature: suitable for The treatment of mixed hemorrhoids, the external part of the hemorrhoid is peeled and removed, and the internal part of the hemorrhoid is ligated.