Intestinal polyps are benign tumors that occur in the mucosal epithelium of the small intestine or in the epithelium of intestinal glands. The exact cause of intestinal polyps is not clear, mostly due to poor diet, Crohn’s disease, familial adenomatous polyposis, bile duct stones and other reasons. 1. Bad dietary habits: due to long-term intake of high-fat, spicy and stimulating foods or smoking and drinking lead to regular stimulation of gastrointestinal tissues, which can easily induce intestinal polyps. 2. Crohn’s disease: if you suffer from Crohn’s disease for a long time, your stomach and intestines will be stimulated by inflammation for a long time, leading to damage of intestinal mucosa, and the epithelium of gastric mucosa will be stimulated for a long time, leading to hyperplasia and apoptosis, which will easily lead to intestinal polyp in a long time. 3. Familial adenomatous polyposis: If the immediate family or family history of adenomatous polyposis, the probability of offspring will increase. 4. Biliary tract stones: If you suffer from biliary tract stones, after cholecystectomy, the flow of bile and the time of excretion changes, the acidity of the bile in the colon increases, which can easily induce the occurrence of intestinal polyps. Intestinal polyps do not exclude that there are other causes, it is recommended to go to the hospital regularly for physical examination.