Epithelial metaplasia does not necessarily lead to cancer, therefore, there is no strict time standard for epithelial metaplasia to become cancerous in a few years, and no generalization can be made. Therefore, there is no strict time standard for intestinal epithelial hyperplasia to become cancerous in a few years. Generally, intestinal epithelial metaplasia can be divided into two types: small intestinal epithelial metaplasia and colonic epithelial metaplasia. Small intestinal epithelial metaplasia is mainly benign lesions, and the probability of malignant cancer is relatively low. Colonic epithelial metaplasia, which mostly occurs in patients with advanced intestinal metaplasia, has a higher risk of developing cancer, which may occur in several years, ten years or even longer. Chronic inflammatory diseases of the stomach are common causes of intestinal epithelial hyperplasia, such as chronic atrophic gastritis, Helicobacter pylori infection, and chronic gastritis. Therefore, patients with these conditions should undergo timely standardized treatment to prevent the deterioration of the disease. Patients with intestinal epithelial hyperplasia should improve their daily dietary structure and try to choose a light, regular and quantitative diet, avoiding foods that are too acidic, cold, spicy and other irritants.