Chronic atrophic gastritis c2 is generally not serious, and the classification is based on the degree of mucosal atrophy, which is based on the Kimura-Takemoto classification. c is atrophic gastritis. c2 indicates mild atrophy of the gastric mucosa, with predominantly atrophic mucosa of the gastric sinus, not approaching the cardia. Chronic atrophic gastritis c2 is mild atrophy of the gastric mucosa, and may present with symptoms such as epigastric pain, abdominal distension, nausea, early satiety, loss of appetite, etc. It can be examined by testing for Helicobacter pylori, gastroscopy, and so on. Chronic atrophic gastritis can be given quadruple therapy such as omeprazole, bismuth pectin, clarithromycin and metronidazole if there is Hp infection; if it is due to duodenal-gastric reflux, it can be treated by taking gastric mucosa-protecting medications such as magnesium aluminium carbonate, and gastrointestinal motility-improving medications such as domperidone; and multivitamin supplementation is available for those with a lack of gastric mucosal nutritional factors. In addition, patients with chronic atrophic gastritis should pay attention to diet, eat less smoked, pickled, nitrate-rich and nitrite-rich food; avoid too rough, strong, spicy food and a large number of long-term alcohol consumption, smoking. It is recommended that patients with chronic atrophic gastritis c2 actively cooperate with doctors for treatment.