In fact, in addition to perianal abscesses and fistulas in children, there is also a common disease in children, namely rectal polyps. Many parents of children do not understand, children are so big, how to grow polyps. In fact, the causes of polyps occur with the following aspects: 1, genetic factors: due to the fetus in the embryonic period, epithelial cells have susceptibility, this characteristic can lead to rapid growth of epithelial tissue in the growth and development period, and the formation of polyps; 2, chronic stimulation: due to changes in the diet of children, or changes in stool properties and special stimulation, some may be due to the emergence of dysentery, the emergence of ulcerative colitis; 3, schistosomiasis, pinworm infection and other intestinal disease stimulation: can lead to the occurrence of rectal polyps; 4, long-term chronic constipation, or dry stool stimulation: can also stimulate the rectal mucosa, and cause rectal polyps.