Chronic mild atrophic gastritis with mild intestinal metaplasia is curable. In chronic mild atrophic gastritis, this atrophy occurs mainly in the sinus region of the stomach, not reaching the lesser curved side of the gastric body. The most common cause of chronic atrophic gastritis is related in large part to H. pylori infection and requires a carbon 13, or carbon 14 breath test to clarify the presence of H. pylori. Antibiotics should be discontinued for one month and proton pump inhibitors, such as omeprazole, for two weeks before the H. pylori test is performed. Anti-H. pylori treatment is needed if H. pylori infection is present so that chronic atrophic gastritis can be reversed. In the absence of H. pylori infection, diet requires avoidance of tobacco and alcohol, irritating foods and pickled foods, and annual gastroscopy to observe changes in atrophy so that further treatment can be taken.