If there is no endoscopic treatment, or only take biopsy, usually 24 hours can resume normal diet, if there is endoscopic treatment, need to fasting water, according to the size of trauma, the severity of bleeding to determine the duration of fasting, rehydration therapy, and then gradually from the liquid diet over to normal diet. Patients after gastroenteroscopy may cause damage to the gastrointestinal wall, such as the need to take polyps or biopsy, it will cause damage to the gastric mucosa, if immediately eat at this time, especially hard and indigestible food will stimulate the mucous membrane of the gastrointestinal tract, causing gastric pain, gastric distension and other symptoms, to the gastrointestinal tract to cause a burden on the gastrointestinal tract, prone to dyspepsia and other problems. Therefore, generally after 24 hours after the gastroenteroscopy can eat normally, but should also try to eat a light diet, avoid spicy, cold and other stimulating food.