Endoscopic surgery for intestinal polyps mainly includes the following: 1, endoscopic biopsy forceps removal, or thermal biopsy forceps removal, suitable for polyps less than 0.5cm; 2, trapdoor lap resection: with a tip, more than 5mm; 3, endoscopic mucosal resection: without a tip, more than 5mm, with a wider base, usually after drug injection in the base of the polyp, resected with a trapdoor, and then use titanium clips to close the trauma after resection; 4, endoscopic mucosal dissection (ESD): more than 2cm, without a tendency to basal cancer. , endoscopic mucosal dissection (ESD): for those who are more than 2cm and have no basal cancerous tendency.