Broad-based polyps are a type of polyp with a wider tip and base, and the surgical wound after removal is larger than other polyps. The cancer rate of polyps in different locations is different. The cancer rate of sigmoid polyps is higher than rectal polyps, and the cancer rate of polyps in rectum is 7.3%, while the cancer rate of polyps in sigmoid colon is 24.8%. The cancer rate of broad-based polyps is higher than that of tipped polyps, and the cancer rate of tipped polyps is higher than that of non-tipped polyps, and the cancer rate of broad-based polyps is as high as 10.2%, while that of tipped polyps is 4.5%. Polyps have the possibility of cancer, and should be detected and treated early. Polyps can be treated under endoscopy, which is less bleeding, less painful, less traumatic, and will not have sequelae, and will not destroy the structure of the digestive tract.