Among chronic gastritis, chronic atrophic gastritis has a certain tendency to become cancerous, and the probability of developing cancer is about 0.5%-1%. Chronic gastritis is clinically divided into chronic non-atrophic gastritis and atrophic gastritis, and it is generally believed that chronic non-atrophic gastritis does not have a tendency to become cancerous. However, chronic atrophic gastritis has a tendency to become cancerous, and the frequency of gastroscopy review is clinically determined by its gastroscopic pathology. If the patient is not associated with intestinal metaplasia and heterogeneous hyperplasia, a repeat gastroscopy in one to two years may be considered. Patients with moderate to severe atrophy with intestinal epithelial hyperplasia are generally recommended to follow up with a gastroscopy and review of pathology in about six months to a year. If there is severe intestinal epithelial hyperplasia, immediate surgical or endoscopic treatment is required. Patients with chronic gastritis are advised to start with dietary and lifestyle modifications. In addition, if the patient has H. pylori infection, it is important to eradicate it and to follow up with regular gastroscopy.