Atrophic gastritis with erosion is a lesion of the gastric mucosa, which is prone to cancer if left untreated, and therefore needs to be brought to the attention of patients. Common causes are irregular diet, Helicobacter pylori infection, tobacco and alcohol stimulation, trauma or stress, exertional stress, increased gastric mucosal permeability, mucosal ischemia, which can lead to erosion and bleeding of the gastric mucosa, which can lead to atrophic gastritis if the cause persists. Clinical symptoms often manifest as abdominal pain, bloating, belching, early satiety, loss of appetite, upper abdominal discomfort, black stools, etc. Treatment 1, adjust the diet and lifestyle, eat a light diet, avoid eating too greasy, too hard, spicy and stimulating food, do not drink strong tea, coffee, carbonic acid and other beverages, quit smoking and alcohol, develop regular habits of rest and avoid staying up late; 2, according to the patient’s symptoms often apply omeprazole, ranitidine to inhibit gastric acid secretion, thioglycollate aluminum to protect the gastric mucosa, mosapride, domperidone to promote gastrointestinal motility. If combined with Helicobacter pylori infection, you need to apply the “quadruple” drug eradication, that is, amoxicillin, clarithromycin, omeprazole and colloidal bismuth to carry out combined treatment, after treatment to review on time; 3, once the bleeding black stool, tarry stool, weakness, panic, cold sweat, need to promptly hospital consultation.