After colonoscopy, a normal diet or a liquid or semi-liquid diet may be given as appropriate. Enteroscopy is a very popular means of examination, simple colonoscopy can be normal life after the end of the examination, should be non-invasive examination. After colonoscopy to take biopsy specimens, do polypectomy and other treatment procedures, it is necessary to pay attention to the observation of close observation, and the diet should be given a special diet. 1. Normal food can be given after colonoscopy without biopsy in general. 2. If the colonoscopy is not carried out smoothly and the pain is severe, at this time, it can cause damage to the intestinal mucosa, and a liquid or semi-liquid diet should be given for 1 to 2 days after the operation. 3. For patients with small polyp resection and biopsy forceps for polyp removal by colonoscopy, the day of surgery should be fluid or semi-fluid diet with less residue, and normal diet can be resumed only afterward. 4. For patients with larger polyps removed by colonoscopy, the postoperative dietary sequence is as follows: fasting for 1 to 2 days – liquid diet for 1 to 2 days – semi-liquid diet for 2 to 3 days – return to a normal Diet. Diet after colonoscopy should be carried out under the guidance of a doctor to avoid adverse consequences.