The main causes of intestinal polyps usually include damage to the intestinal mucosa. Chronic inflammatory stimulation and genetic factors, etc. 1. If there is foreign matter or coarse residue in the stool for a long period of time, it may cause intestinal mucosal damage, and ultimately intestinal polyp-like protrusions can be formed. 2. If the patient himself suffers from inflammatory bowel disease, such as ulcerative colitis and Crohn’s disease, etc., it may stimulate the intestinal mucosal epithelium for a long time, resulting in the increase of intestinal cells and the emergence of intestinal polyps. 3. In addition, about 10% of colorectal cancer patients have family history of cancer, if there are patients with adenomatous polyps in the family, then the possibility of colorectal polyps in other members will be significantly higher. Clinical diagnosis of intestinal polyps should follow the doctor’s instructions for treatment and review.