The preoperative preparation of intestinal polyps is generally preoperative examination, such as colonoscopy, blood routine, electrocardiogram, hepatitis B and other tests, etc. Patients also need to do a good job of intestinal cleansing in advance. 1. Colonoscopy: Before doing intestinal polyp surgery, patients need to perform gastroenteroscopy, which is needed to clarify the size, location and number of polyps. 2. Blood routine: before the operation, patients also need to carry out blood routine and coagulation mechanism examination, to exclude patients with coagulation mechanism disorders, so as to avoid the occurrence of intraoperative hemorrhage. 3. Electrocardiogram: For older patients, electrocardiogram may also be needed to rule out the possibility of heart problems during surgery. 4. Hepatitis B: In some cases, it may also be necessary to screen patients for hepatitis B surface antigen before surgery to avoid cross-infection during surgery. 5. Intestinal cleansing: Intestinal cleansing is a necessary preparation for intestinal surgery, patients generally need to eat a liquid diet the day before surgery, the day of surgery can also be taken orally polyglycol electrolyte powder or enemas to help clean the intestinal tract. Intestinal polypectomy is a relatively common clinical surgery, patients do not have to be nervous, most of the preoperative preparations are prepared with the help of the doctor, generally require patients to make special preparations for the doctor will be informed in advance.