Chronic gastritis is potentially cancerous. Although its incidence is low, the reality that gastritis leads to gastric cancer is caused by the large number of people with gastritis itself, which is too large a base. Therefore, the analysis of the probability of cancer in patients with gastritis needs to be specific according to the specific situation. Generally speaking, the common chronic gastritis, according to the severity of the lesion, can be divided into chronic superficial gastritis, chronic atrophic gastritis, followed by intestinal epithelial hyperplasia, heterogeneous hyperplasia, and finally can develop into gastric cancer. Chronic superficial gastritis is the mildest form of gastritis with a high incidence rate, usually without obvious discomfort, and the damage of gastric mucosa is only in the most superficial layer of gastric mucosa. If superficial gastritis is not treated, continue to overeat and continue unhealthy habits, it may develop into chronic atrophic gastritis, chronic atrophic gastritis will appear atrophy of the gastric mucosa and reduction of glands. Chronic atrophic gastritis needs to be treated and reviewed regularly to prevent cancer. Some studies have shown that it is possible for atrophic gastritis to reverse and return to normal after active treatment. If atrophic gastritis continues to develop, there is a possibility of intestinal epithelial metaplasia, which is the appearance of intestinal mucosal epithelium inside the stomach. Colonic metaplasia is more serious, difficult to reverse, and has a certain chance of cancer. However, we do not need to worry too much, the chance of cancer in intestinal epithelial metaplasia is not very high, some statistics show that the probability of cancer in intestinal epithelial metaplasia is less than 3%, do not be frightened when you hear about intestinal epithelial metaplasia, but should receive treatment and regular review, for moderate to severe intestinal epithelial metaplasia or large intestine type metaplasia, you need to pay high attention to it, every 6 to 12 months, do a gastroscopy, for ordinary intestinal For common intestinal metaplasia, there is no need to be particularly nervous, and a review once a year is sufficient. The most important thing is to know that even a terminal disease can be a miracle, let alone a gastritis. As long as it is detected and treated in time, most diseases can be controlled and even recovered. Gastritis is not a high-risk disease, and gastric cancer may indeed occur, but the odds are not high, and can only be treated as a small probability event.