Atrophic gastritis requires a gastroscopy once every six months to a year. Atrophic gastritis indicates that the patient’s gastric mucosa has atrophied and the degree of the patient’s condition is more serious, which makes it difficult to treat, and because there is a certain possibility that atrophic gastritis will become cancerous, it is best to go to the hospital for a regular review after the disease, and the specific review time needs to be decided according to the patient’s condition. Some patients whose condition is not particularly serious can go to the hospital once a year for a checkup to see if their condition is developing and whether medication is working, and to choose the right medication according to their condition. However, some patients with atrophic gastritis are relatively serious and may even have atypical hyperplasia, so their review time should be shortened accordingly, preferably once every six months.