There is no authoritative information on how many years it takes for intestinal chemotaxis to ectasia, it may be a few years, or it may be a dozen or a few decades, the exact time varies from person to person. Intestinal chemosis refers to intestinal epithelial chemotaxis, meaning the process of gastric mucosal epithelium being replaced by intestinal epithelial cells, and ectoderm refers to ectodermal hyperplasia, meaning proliferative lesions. At present, there is no relevant authoritative information to specify the intestinal epithelialization to heterotrophic hyperplasia to a few years, it is not clear, need to be based on the actual situation, can not be generalized, there is obvious individual variability. In general, intestinal epithelial hyperplasia may be a few years, more than ten years, or even decades to develop to allopatric hyperplasia, the specific time is related to each person’s physical quality, condition, treatment methods and other factors. Intestinal epithelial hyperplasia is often combined with chronic gastritis, especially atrophic gastritis. If not treated properly, further development of severe intestinal epithelial hyperplasia may progress into early gastric cancer. To sum up, when patients are examined for the existence of intestinal epithelialization, they need to actively cooperate with doctors for treatment so as not to delay the condition, and usually improve bad habits and follow up on time.