In general, atrophic gastritis with enterocolitis tongue coating may be yellow. Atrophic gastritis with intestinal chemosis, that is, chronic atrophic gastritis with intestinal epithelial chemosis, mainly refers to the gastric mucosa due to chronic inflammatory damage caused by epithelial atrophy and glandular reduction, gastric mucosal epithelium is gradually replaced by intestinal mucosal epithelium. It can be manifested as vague pain in the upper abdomen, acid reflux, heartburn, bloating and other indigestion, and also upper gastrointestinal bleeding such as vomiting blood, black stools, anemia, emaciation and other symptoms. Yellow tongue can be caused by gastrointestinal dysfunction, hepatitis, poor appetite, etc. Chronic atrophic gastritis with intestinal epithelial hyperplasia can present symptoms of indigestion, so it is possible to cause yellow tongue. Patients with chronic atrophic gastritis with intestinal epithelialization are advised to eat a light diet, avoiding spicy stimulation, high oil and salt, cold and hard food intake, such as fried chicken, ice cream, hot and spicy hot. If necessary, timely medical treatment to clarify the diagnosis, targeted treatment.