Mild atrophic gastritis with moderate bowelization is generally not serious and is a benign condition. If it develops into heterotrophic hyperplasia, it represents a more serious condition, which is a precancerous lesion of gastric cancer. 1. No heteroplasia: if the patient has atrophic gastritis with intestinalization without other pathological manifestations such as heteroplasia, the condition is not too serious, and the patient can take acid-suppressing drugs and gastrointestinal peristalsis-promoting drugs, including omeprazole, rabeprazole or mosapride, etc. It is suggested that the patient should take gastroscopy regularly to check whether other pathological manifestations such as heteroplasia occur. 2. Heteroplasia: heteroplasia, also called atypical hyperplasia, is a precancerous lesion of gastric cancer, which is more serious. Preventive surgery such as endoscopic gastric mucosal resection is feasible. In the case of mild atrophic gastritis with moderate intestinalization, it is recommended to go to the hospital as soon as possible, undergo medication, and undergo regular checkups. If it develops into heterogeneous hyperplasia, preventive surgery such as endoscopic gastric mucosal resection should be performed to prolong the survival period.