Sigmoid colon polyps have been surgically removed, and can not be considered completely well, should also be regularly reviewed to avoid recurrence. Sigmoid colon travels in a tortuous way, and there are more mucosal folds, enteroscopy, some small polyps are not easy to find, there is a certain rate of leakage; secondly, the cause of sigmoid colon polyps is complex, although the polyp is removed, but the cause of the polyp may still be in effect, which can induce the generation of new polyps. Therefore, the recurrence rate of sigmoid colon is high. A study involving 2706 patients with colorectal polyps also showed that the recurrence rate after polypectomy was 31.4%, and most of them recurred within 2 years. Therefore, although the sigmoid colon polyps have been surgically removed, we should still be vigilant about the possibility of recurrence, but also can not except the other parts of the colon polyps. It is important to follow the doctor’s instructions to go to the hospital for regular checkups, and to consult the doctor in time when discomfort occurs.