Intestinal chemosis is usually not visible directly under white light gastroscopy, but gastroscopy can be used to check for intestinal chemosis after taking a biopsy. Nowadays, there is NBI fine examination, which can determine intestinal chemosis from the microstructure, but ultimately need pathology to determine. Generally, during the examination of gastroscopy, only the surface condition of the stomach can be observed, and it can be observed whether there is inflammation on the surface, whether there are ulcerated polyps and so on. However, for intestinal metaplasia, it belongs to the internal tissue has changed, need to take the patient’s stomach tissue, after pathological biopsy can be determined. Nowadays, there is NBI gastroscopy, which can determine intestinal chemosis from the microstructure, but ultimately, the diagnosis needs to be determined by pathology. Intestinal epithelial growth is clinically associated with chronic atrophic gastritis, and there is a risk that it may develop into gastric cancer. If the patient in the gastroscopy examination detected the symptoms of gastric mucosal atrophy, it is best to do a timely pathological examination, if the diagnosis of intestinal epithelialization, it is best to timely intervention treatment. For patients with intestinal epithelial hyperplasia, clinicians will take into account the location of the intestinal epithelial hyperplasia, the degree of hyperplasia, and whether it is accompanied by other symptoms, in order to recommend treatment, regular checkups, and so on.