Polyps are a class of abnormal growths protruding from the mucosal surface, commonly referred to as polyps until their pathological nature is determined, and are generally formed by the growth and aggregation of cells originating from the mucosa. Intestinal polyps are a common clinical condition, the incidence of which increases with age and is more common in men than in women. Polyps can grow throughout the human gastrointestinal tract, with polyps in the colon and rectum being the most common and polyps in the small intestine being less common. What is caused by polyps in the intestine? 1, dietary factors The incidence of long-term eating high fat, high protein, low fiber is higher, while eating more vegetables and vitamin C is lower. North America, Western Europe is common, South Asia is rare, may be related to such dietary habits. Diets with more than 40% fatty components are an important factor in the formation of colorectal polyps; if fat intake does not exceed 15% of the diet, the incidence is significantly reduced. High-fat diets can increase bile acids in the intestine, and the interaction between bile acids and bacteria may be the basis for the formation of adenomatous polyps. 2, inflammatory stimulation Long-term chronic inflammation of the intestinal mucosa can cause polypoid granulomas on the intestinal mucosa. Such as chronic colitis, chronic ulcerative colitis, Crohn’s disease, etc. Because of long-term inflammation of the intestine, the central ulcer surface there is still edema and congestion of the mucosal area, the surrounding ulcers healed to form a scar, gradually contracted, so that the residual mucosal protrusion, the surface is polyp-like; or ulcers and granulation tissue proliferation raised, and then the adjacent mucosa growth, will cover the formation of polyps, this pathological change is mostly seen in inflammatory polyps. 3, genes and heredity It is generally believed that the formation of polyps and genetic mutations and genetic factors are closely related, from the current research shows that mutant genes can be inherited by parents to their offspring children, in the genetic opportunity is equal for men and women, there is no difference between the sexes. 4, intestinal mucous membrane damage coarse residue in the stool, foreign bodies and other factors can cause damage to the intestinal mucosa or long-term stimulation of the intestinal mucosa epithelium, so that the intestinal mucosa in a balanced state is damaged, the formation of intestinal polyps. Long-term constipation patients, often use stimulating laxatives to stimulate the intestinal wall will also occur polyps. 5, other diseases immunocompromised people, atherosclerosis, coronary heart disease, diabetes, gastroduodenal ulcer gastrojejunostomy, cancer radiation therapy patients and obese people have a higher incidence. Researchers at the University of Washington reported an 80% increased risk of colorectal adenoma in women with type 2 diabetes compared to non-diabetic women. Diabetes plus obesity more than doubled the risk of colorectal adenomas and adenomas found at more advanced stages compared to non-obese, non-diabetic women.