The main reason for fasting after colonoscopic polyp removal is to prevent postoperative bleeding and to avoid causing choking. After the removal of colonoscopic polyps, if the colonoscopic incision if not fully grown, eating at this time is easy to cause postoperative bleeding. Secondly, after eating to produce stool, too much stool is easy to cause the incision bleeding again. Enteroscopic polyp cutting surgery usually need to play anesthesia, after the operation body anesthesia is not completely discharged, if eating is easy to cause choking symptoms, is not conducive to the recovery of the incision, and is likely to cause bleeding from the incision. Generally, fasting is required for 24 hours after colonoscopy polyp resection, and the specific time depends on the patient’s recovery. It is usually necessary to slowly transition from a full-fluid diet to a semi-liquid diet, with small, frequent meals. After undergoing colonoscopic polypectomy, patients should strictly follow the postoperative precautions and inform the doctor promptly if any abnormality or discomfort abnormality occurs.