The progression of mild atrophic gastritis to stomach cancer usually takes years or decades, depending on the individual. The progression of mild atrophic gastritis to gastric cancer is affected by diet, environment, infection and other factors, such as prolonged consumption of pickled and smoked foods. Mild atrophic gastritis can be effectively controlled with active treatment and has a good prognosis. Only a very small number of mild atrophic gastritis progresses to gastric cancer through long-term evolution, which usually takes years or decades. Patients with mild atrophic gastritis should undergo regular review of gastroscopy, and if there is no atypical hyperplasia, the interval between reviews is usually 1 to 2 years. If patients with mild atrophic gastritis with intestinal epithelial hyperplasia should be followed up with a focus on gastroscopy, usually every 3 to 6 months, and tumor markers can be reviewed several times if necessary for early detection of gastric cancer. If the patient is diagnosed with mild atrophic gastritis, it is recommended to go to the regular hospital in time, after clarifying the cause of the disease, targeted treatment under the guidance of the doctor, in order to reduce the adverse effects of the disease.