If it is a simple polyp, such as a polyp with a tip (shown in the figure below), after the endoscopist directly electrocautery with a captive ligature, you can usually have water the same day and start a liquid diet, such as milk or soy milk, the next day, but the preferred intestinal nutrients prescribed by the doctor, such as Ensure and Renon, are very good nutrients and do not easily form stools. If the polyp is large or a broad-based polyp (Figure 1), after endoscopic resection, the wound is large and deep, especially if the doctor suspects the possibility of cancer, submucosal dissection (ESD) will be performed, when the intestinal wall becomes very thin after the surgery, which can lead to perforation if eating too early, especially if defecation is too early. The perforation will manifest with abdominal pain and fever, as well as an abdominal CT suggesting pneumatization and or fluid accumulation around the bowel, as shown below in the CT image with a small amount of pneumatization around the bowel. Surgery is usually required to repair the perforation or to surgically remove the perforated segment of the bowel. The figure below shows the partial resection of the colon we performed last week for a patient with perforation after colonoscopic adenoma resection. Therefore, for patients with large surgical wounds, we recommend a 2-3 day postoperative fast followed by a week of oral enteral nutrition as a more prudent course. After endoscopic resection, make sure to eat as prescribed by the doctor. If you have any discomfort, promptly communicate with your doctor. To add, if you have colon polyps, you must remove them in time. Overall, endoscopic removal of colon polyps is safer. It is important to trace the pathology after polyp removal to prevent any cancerous changes.