The reasons for the formation of gastric ulcers are the following: 1, H. pylori infection, H. pylori colonized the stomach wall will secrete virulence factors that destroy the gastric glands, the initial stage will form gastric mucosal erosion, if not actively treated, will develop into gastric ulcers. 2, dietary factors, often eat spicy and stimulating food, such as chili peppers, garlic, leeks, raw onions, etc., which contain irritating molecules, or often a lot of The gastric mucosa is stimulated by alcohol, and frequent alcohol consumption can cause congestion and erosion of the gastric mucosa, which can form ulcers if left untreated for a long time. 3, stress, when the body suffers a huge trauma or major surgery, the gastric mucosa can produce ulcers under the stimulating effect. 4, drug factors cause, such as celecoxib, acetaminophen, etc.