结肠息肉可分5类,即腺瘤性息肉(常见,并包括家族性息肉病和Gardner氏综合症)、乳头状瘤、错构瘤性息肉、炎性息肉和息肉样粘膜增生。一般认为,炎性息肉和息肉样粘膜增生与癌的发生无关,错构瘤性息肉和黑斑息肉综合症与癌的关系不明。人口尸检中,约8%有一个以上大肠息肉。Rider报告结肠癌发病率在有息肉者比无息肉者高5倍。而对结肠 Colon polyps can be divided into five categories, namely adenomatous polyps (common, and include familial polyposis and Gardner’s syndrome), papilloma, hamartoma polyps, inflammatory polyps, and polypoid mucosal hyperplasia. It is generally believed that inflammatory polyps and polypoid mucosal hyperplasia have nothing to do with the occurrence of cancer, and the relationship between hamartoma polyps and melasma polyps and cancer is unknown. In the autopsy of the population, about 8% had more than one colorectal polyp. Rider reports that the incidence of colon cancer is 5 times higher in people who have polyps than those who do not have polyps. And on the colon