The time for non-atrophic gastritis to become atrophic gastritis is related to the patient’s physical fitness and the severity of the disease, and active treatment will also prolong the time, so there is no fixed period. Most patients with non-atrophic gastritis who are in good health and have mild symptoms can be restored to normal after active treatment. They can be relieved of their symptoms and improve the prognosis of the disease through general treatment and medication such as omeprazole and thioglycollate, which can prolong the time for the transformation into atrophic gastritis to a certain extent, and even cure the disease. Only a small portion of non-atrophic gastritis with poor physical condition and more serious disease may be transformed into atrophic gastritis in a short period of time, and the exact time cannot be determined. Therefore, patients are advised to actively cooperate with doctors to receive treatment to avoid further development of the disease and improve the prognosis of the disease.