Moderate intestinal epithelial hyperplasia is a process in which the epithelium of the gastric mucosa is replaced by the epithelium of the intestinal mucosa, and moderate is when the area of hyperplasia accounts for between 1/3 and 2/3 of the gastric mucosa. There are many causes of intestinal epithelialization, mainly chronic long-term damage to the gastric mucosa caused by drugs (such as non-steroidal anti-inflammatory drugs), food, Helicobacter pylori infection and other factors, which causes intestinal epithelialization. Intestinal epithelial hyperplasia is classified as mild, moderate, or severe according to the degree of intestinalization; for example, moderate is when the area of hyperplasia accounts for between 1/3 and 2/3 of the gastric mucosa. Intestinal epithelial hyperplasia is common in many kinds of chronic gastritis. In order to prevent the continuous development of intestinal epithelial hyperplasia, regular gastroscopy and timely standardized treatment for gastritis are required to control its progress. If the above situation occurs, should promptly go to the hospital for standardized treatment, and regularly do the relevant examination, so as not to delay the condition.