Gastric disease, is a collective term for many stomach-related diseases. They have similar symptoms, such as epigastric gastric discomfort, pain, fullness after meals, belching, acid reflux, and even nausea, vomiting and so on. The common clinical gastric diseases are acute gastritis, chronic gastritis, gastric ulcer, duodenal ulcer, gastroduodenal complex ulcer, gastric polyps, gastric stones, benign and malignant tumors of the stomach, as well as gastric mucosal prolapse, acute gastric dilatation, pyloric obstruction and so on.