The etiology of gastric cancer is not particularly clear. It may be related to genetic factors, environment, dietary factors, H. pylori infection, chronic atrophic gastritis, gastric polyps, gastric ulcers, etc.
Gastric cancer is a malignant tumor that originates from the epithelium of the gastric mucosa. It is not clear exactly how gastric cancer is formed, but it is presumed to be related to the following factors: genetic factors, there is a clear family tendency for gastric cancer to develop; environmental and dietary factors, the incidence of gastric cancer is also higher among people who eat smoked and pickled foods for a long time; people with H. pylori infection The incidence rate of gastric cancer is also higher among people with H. pylori infection. The pre-cancerous lesions include chronic atrophic gastritis, gastric polyps, gastric ulcers, and pathological examination reveals intestinal epithelial hyperplasia and atypical hyperplasia, which can also increase the risk of gastric cancer.