After an afternoon colonoscopy gastroscopy, eating in the evening will need to be determined by the results of the gastroenteroscopy and whether or not surgery is performed. If everything is normal, you can eat a liquid diet such as rice soup. After gastroenteroscopy, the time of water fasting and the time of resuming diet afterward need to be decided according to the results of the examination and whether there are polyps and other treatments. According to the endoscopic results such as everything is normal, ulcers, polyps, tumors, the presence of intestinal obstruction or narrowing, etc.; whether or not there is endoscopic treatment such as polyps endoscopic mucosal resection and other surgical procedures are different, to decide whether or not you can eat. If the examination results of active bleeding, obstruction or stenosis exists, it is necessary to fasting water, and then resume a liquid diet after treatment. In the case of endoscopic surgical treatment, such as polypectomy, a water fast ranging from 6 hours is required, after which a liquid diet is resumed. If the endoscopy results are all normal, within two hours after the endoscopy is over, fasting water, after resting for 1 to 2 days first consume rice soup and other easily digestible food, and then resume a normal diet. In the afternoon after the colonoscopy gastroscopy specific diet, you can consult a professional physician’s opinion.