1, eradication of H. pylori treatment: This is the main measure to prevent and reverse intestinal chemosis. For atrophic gastritis of the gastric body, eradication therapy based on bismuth plus two sensitive antimicrobials (e.g. clarithromycin 0.5 g, amoxicillin 1 g, metronidazole 0.4 g twice daily for 1 week) can be chosen. For atrophic gastritis of the gastric sinus, in addition to the above-mentioned regimen, eradication therapy based on proton pump inhibitors plus two sensitive antimicrobials can also be selected. 2, gastric mucosa protective agents: such as aluminum thiosulfate, potassium bismuth constructate and other drugs to protect the gastric mucosa, reduce the role of damage, can be used as appropriate. 3.Gastric motivation drugs: If abdominal distension and indigestion are the main symptoms, gastric motivation drugs (such as morpholine and mosapride) can be applied according to the severity of symptoms. 4, for epigastric pain obvious sinus atrophic gastritis, can apply proton pump inhibitors (such as omeprazole, etc.) or H2 receptor antagonists (such as ranitidine, etc.) treatment, but the dosage should be appropriately reduced. 5. Supplementation of vitamins and digestive enzymes. If accompanied by pernicious anemia, vitamin B12 and folic acid can be supplemented regularly. 6, Chinese herbal medicine treatment: can make part of intestinal epithelial chemosis and heterotypic hyperplasia reduce or disappear. Such as Sanjiu Gastrodia, Gastric Fuchun, Monkey Fungus Tablets, Gastric Shukang Oral Liquid, etc. 7, acupuncture treatment: such as taking acupuncture points Foot San Li, Liver Yu, Stomach Yu, after injecting Huang Qi and Angelica injection into the acupuncture points. For chronic atrophic gastritis, regular medical follow-up should be performed, regular gastroscopy review, is the main measure to screen for cancer, gastroscopy review interval: generally require a review every 2-3 years; if accompanied by incomplete colon type intestinal chemosis or with mild heterogeneous hyperplasia review every six months or a year; with moderate heterogeneous hyperplasia review every 3 months l; with severe heterogeneous hyperplasia, part can still be under active For those with severe heterogeneous hyperplasia, some of them can still be closely observed for changes under active medical treatment, and for those with focal lesions, mucosal resection can be done under gastroscopy, and some patients can be surgically removed.