What are the common diseases of the stomach?

Common diseases of the stomach mainly include gastritis, gastric ulcer, and duodenal ulcer. Among these, gastritis can be divided into acute and chronic types, often caused by Helicobacter pylori infection, improper diet, and other factors. Symptoms include discomfort and fullness in the upper abdomen, loss of appetite, and so on. Gastric ulcers are usually caused by long-term mental stress, bacterial infection, and other factors, presenting as burning pain in the stomach area after meals. Additionally, there are functional dyspepsia, gastric polyps, gastric calculi, and gastroparesis syndrome. If eating habits are irregular or lifestyle is unhealthy over a long period, more severe diseases, such as gastric cancer, may develop. Therefore, maintaining a healthy lifestyle is crucial for the prevention of gastric diseases.