Chronic gastritis is a relatively common clinical disease in gastroenterology, mainly including chronic superficial gastritis, chronic erosive gastritis, and chronic atrophic gastritis. The clinical manifestations are diverse and there are no specific signs or symptoms. Most patients with Helicobacter pylori infection do not show obvious symptoms, while a minority of patients may experience nausea, vomiting, and postprandial fullness in the upper abdomen, among other symptoms of indigestion. Most cases of chronic gastritis are discovered during physical examinations or endoscopic examinations. The main principles of treatment for chronic gastritis are dietary adjustments and oral medication. It is important to maintain regular eating habits, avoid spicy and irritating foods, and pay attention to one's daily life and routines.