Who are suitable for laparoscopic colorectal surgery? (Indications) The indications and contraindications for laparoscopic colorectal surgery are basically the same as those for traditional open surgery. 1.Colon polyps that cannot be removed by colonoscopy, diverticulosis that requires resection of intestinal segments, sigmoid colon torsion, megacolon, rectal prolapse, etc. 2.Benign colorectal tumors that require surgical resection. 3.Radical and palliative surgery for malignant colorectal tumors. 4.Terminal ileostomy or colostomy. Who are not suitable for laparoscopic colorectal surgery? (Contraindications) 1. General contraindications: heart, lung, liver and kidney dysfunction or insufficiency; patients with severe bleeding and coagulation dysfunction. Excessive obesity; serious abdominal adhesions caused by previous surgery. 2, special contraindications: intestinal obstruction (including large and small bowel obstruction); spontaneous perforation of the large intestine and delayed perforation caused by trauma; extensive and infiltrative inflammatory and tumor lesions; tumors greater than 7 cm and have infiltrated the uterus, bladder, ureter, small intestine, duodenum, pelvis and abdominal wall muscles and other adjacent organs of patients.