It is normal to feel stomach pain after meals in bile reflux gastritis, which can be seen in conditions such as stomach surgery and Helicobacter pylori infection, for which treatment is recommended. Bile reflux gastritis is a specific type of chronic gastritis, which mainly involves the reflux of bile located in the duodenum into the stomach. Bile is normally stored in the gallbladder and enters the intestines after eating to aid in digestion. If bile refluxes into the stomach after eating, it can damage the protective barrier of the gastric mucosa, and the acidic environment of the stomach can further exacerbate the damage, leading to symptoms such as stomach pain, acidity, nausea and vomiting. Bile reflux gastritis can be seen after gastrectomy, Helicobacter pylori infection, gallbladder disease, congenital pyloric portal insufficiency, etc. It is recommended to go to the hospital for examination and treatment.