Mr. Zhao was found to have chronic atrophic gastritis in a gastroscopic examination during a physical examination three years ago. The doctor asked him to come for reexamination regularly, at least once every three months. But he thought that his stomach disease was not a big deal. As a result, he did not go for reexamination even once. Three years later, he came because the discomfort in his stomach had worsened, sometimes feeling bloated and vomiting. A gastroscopy revealed that gastric cancer had formed in the area of the gastritis. Like Mr. Zhao, many people tend to overlook the dangers of gastritis.