Wide-base polyps have a cancer rate of greater than 10%. Wide base polyp means that when the polyp is found, the base of the polyp is relatively wide, and the surgical wound is larger than other polyps when removing the polyp. The shape of the polyp is different, and the cancer rate is different, the cancer rate of the wide base polyp is higher than that of the pedunculated polyp, the cancer rate of wide base polyp is high, more than 10%, and that of the pedunculated polyp is about 10%. The cancer rate of broad-based polyps is also directly related to the size of the polyp. Generally speaking, if the diameter of the polyp is more than one centimeter, the degree of malignancy will be increased. In addition to the size of the polyp, the chances of malignant transformation of broad-based polyps can also be judged according to the appearance, blood flow, number, and morphology of the polyp, with the degree of malignant transformation being low in those that have a smooth appearance and a neat edge, and increasing in those that have a rich blood flow. When polyps are found to be growing, it is recommended to consult the general surgery department of a regular hospital.