It is not allowed to eat spicy food before gastroscopy, which will easily affect the results of gastroscopy. The day before the gastroscopy, dietary attention should be paid to avoid eating spicy stimulation, indigestible, greasy food, but also avoid eating with color, high fiber content of food, common leeks, tomatoes, sweet potatoes, etc., it is recommended to eat easy to digest, little or no residue of liquid or semi-fluid food, such as millet porridge, rice porridge, rotten noodles and other easily digestible food. Gastroscopy should be avoided before eating spicy food, eating a lot of spicy diet may be acute gastric mucosal damage, but also stimulate the secretion of gastric acid, digestive enzymes, may affect the results of the examination. It should also be noted that there are gastric polyps to do resection for pathology, if the previous long-term use of aspirin, clopidogrel, warfarin and other anticoagulant, antiplatelet drugs, it is recommended that the examination of the doctor’s orders to stop. Gastroscopy should be prepared and carried out under the guidance of a doctor.