Gastric ulcer refers to a chronic ulcerative lesion in the stomach, while gastric disease has a broader scope, all diseases occurring in the stomach are called gastric disease, including gastric ulcer, gastric cancer, gastritis, gastric polyps, gastroesophageal reflux disease, etc. Therefore, the difference between gastric ulcer and gastric disease lies in the difference of scope, gastric disease includes gastric ulcer, and gastric ulcer belongs to one of the gastric diseases. Gastric ulcer is a relatively serious gastric disease because gastric ulcer can have complications, which may be complicated by bleeding, perforation, obstruction, cancer, etc. Patients with gastric ulcers need to cooperate with doctors to give regular medication, giving the use of acid suppressants combined with drugs that promote mucosal repair, such as oral proton pump inhibitors combined with bismuth, other gastric diseases are also recommended under the guidance of a specialist regular treatment.