There are many reasons for ulcers, mainly the following five reasons: 1, excessive secretion of gastric acid: under normal circumstances, after the secretion of gastric acid involved in the digestion of food, but because of various pathological factors leading to excessive gastric acid, it is easy to damage the gastric mucosa, the formation of ulcers. 2, H. pylori infection: H. pylori is the only bacteria that can survive in the stomach, over time, H. pylori can damage the gastric mucosa, the formation of ulcers. . 3, non-steroidal anti-inflammatory drugs: especially rheumatoid, gout patients, taking non-steroidal anti-inflammatory drugs for pain, such drugs are fatal to the gastric mucosa, can form ulcers. 4, all kinds of chemicals: mainly alcohol, alcohol to the stomach, it can directly stimulate the gastric mucosa, causing damage to the gastric mucosa, and even the formation of ulcers. 5, stress: when the body is in a stressful situation, the The blood supply to the stomach will be reduced leading to ischemia of the gastric mucosa and the formation of ulcers.