Gastric polyps 0.3×0.4 centimeters should be treated with timely surgery and the specific pathological type of the polyp should be clarified. Gastric polyps are a common gastric disease caused by abnormal proliferation of gastric epithelial cells, with a prevalence of about 0.8% to 2.4% in the population. It is often detected by gastroscopy, and should be treated promptly if found because some gastric polyps can develop into gastric cancer. The risk of cancer varies according to the type of pathology. The common pathological types and their risk differences are as follows: 1. Fundic gland polyp, accounting for about 50% of all gastric polyps, has the highest incidence but relatively low cancer rate, and some studies show that its cancer incidence is less than 1%. 2. Hyperplastic polyps, which account for about 40% of all gastric polyps and have a potential risk of cancer. 3. Adenomatous polyps, accounting for about 10% of all gastric polyps. Compared with the first two pathological types, adenomatous polyps have a higher cancer rate, with data showing that the cancer rate can be up to 20%, and the cancer risk is positively correlated with the size of the polyp. It is recommended that gastric polyps detected by gastroscopy should be treated promptly on the advice of a specialist.