Intestinalization is a type of chronic gastric disease, the full name of which is intestinal epithelial metaplasia, often seen in gastroscopy reports, mostly after atrophic gastritis, where the gastric mucosal glands are seen to be replaced by intestinal adenoid glands. Overall, it can be divided into complete and incomplete intestinalization, as well as large and small intestinalization. At the same time, there is also a difference in the degree of intestinalization, if it is moderate to severe intestinalization, some patients will have the risk of early cancer. I. Types of intestinalization: 1. Complete intestinalization: good epithelial differentiation, seen in various benign gastric diseases, does not increase the risk of gastric cancer; 2. Incomplete intestinalization: poor epithelial differentiation, low detection rate in benign gastric diseases, but high detection rate in intestinal type gastric cancer parietal mucosa, indicating that this type of chemosis has some relationship with the occurrence of gastric cancer; 3. Small intestinal type intestinal chemosis: good epithelial differentiation, a common mucosal lesion, belongs to It is a benign lesion with low risk of gastric cancer; 4. Large intestine intestinal chemosis: poorly differentiated epithelium, with certain risk of gastric cancer, which may be caused by further development and aggravation of small intestine intestinal chemosis. Degree of intestinal chemistry: 1. Mild intestinal chemistry: patients do not need to worry too much, and it can usually be cured after active treatment. Patients are advised to visit the hospital and under the guidance of a professional doctor, they can take oral mucosal protectants and other drugs, and regularly review the gastroscopy. Usually, they also need a healthy diet, regular life and proper rest; 2. Moderate to severe intestinalization: If the patient is moderate to severe intestinalization, strict monitoring of gastroscopy is required. Every 3-6 months, patients need to undergo gastroscopy and pathological biopsy again to clarify the trend of intestinalization.