Chronic inflammation of the pyloric mucosa, i.e., chronic gastritis that occurs in the pyloric region of the stomach, is mostly related to Helicobacter pylori infection, excessive gastric acid secretion and other factors. If gastroscopy suggests only superficial gastritis, it is less serious; if it is pyloric erosive gastritis, atrophic gastritis, etc., the situation will be more serious. 1. Superficial gastritis in the pyloric region: it can be manifested as acid reflux, abdominal distension, loss of appetite, etc. Gastroscopy results show that the gastric mucosa in the pyloric region is mildly congested and edematous, which is less serious. 2. Pyloric erosive gastritis: in addition to symptoms of indigestion such as abdominal distension and nausea, there may be symptoms of upper gastrointestinal bleeding such as vomiting blood and black stools, anemia and emaciation. Gastroscopy results show that the gastric mucosa in the pylorus area is eroded, which is relatively serious. 3. Atrophic gastritis in the pyloric region: Gastroscopy suggests that the gastric mucosa and intrinsic glands in the pyloric region have different degrees of atrophy, which may be accompanied by intestinal epithelial hyperplasia. Atrophic gastritis has a certain chance of becoming cancerous and belongs to the precancerous lesions of gastric cancer, which is more serious. Chronic inflammation of the pyloric mucosa, it is recommended that timely hospital consultation, standardized diagnosis and treatment under the guidance of the doctor.