There is no specific data on the survival of atrophic gastritis at the age of 30 years, which may not affect life expectancy if it is controlled; if it continues to develop and transforms into cancer, the survival period will be significantly reduced. The appearance of atrophic gastritis usually represents precancerous lesions, but the development of atrophic gastritis into gastric cancer still needs to go through 3 stages from chemotaxis to carcinoma, and finally transformed into gastric cancer. Therefore, if atrophic gastritis is found to be under control and treated, the possibility of transforming into gastric cancer can be slowed down, and the life expectancy will not be affected. However, if it is not controlled, it may eventually turn into gastric cancer, which will lead to a rapid decline in survival, and its five-year survival rate is generally less than 50%. It is recommended to treat atrophic gastritis aggressively to reduce the chance of transformation into gastric cancer.