The difference between gastric ulcer and hemorrhagic gastritis: 1. The difference in the location of the lesion: gastric ulcer refers to the ulcer foci in the stomach that have exceeded the mucosal layer of the stomach and reached the muscular layer of the stomach. Hemorrhagic gastritis refers to one of the types of acute gastritis, the exact name of which is acute erosive hemorrhagic gastritis. It is a condition in which the location of the lesion is located in the mucosal layer of the stomach and refers to erosion, bleeding and inflammatory changes in the gastric mucosa.2. The difference in etiology: gastric ulcers are mostly caused by Helicobacter pylori infection, while acute erosive hemorrhagic gastritis is mainly caused by stress, such as after taking non-steroidal anti-inflammatory drugs, or after drinking large amounts of alcohol.3. The difference in complications: gastric ulcers often cause bleeding, perforation, cancer, etc. Acute erosive hemorrhagic gastritis can be complicated by bleeding symptoms, but basically does not cause obstruction, perforation or cancer, etc. In both cases, the main treatment is to give acid suppressants combined with gastric mucosal protective agents, and if there is bleeding then hemostatic treatment needs to be given.