Gastric ulcers are a type of peptic ulcer and are not classified as chronic or acute. Generally gastric ulcers are chronic ulcers and acute gastric ulcers are called acute gastric mucosal damage, also called acute gastric mucosal erosion. Peptic ulcers are chronic ulcers. The specific symptoms are mainly abdominal pain, severe abdominal pain, mainly after meals, accompanied by heartburn and acid reflux, taking PPI can treat abdominal pain. If it is persistent abdominal pain with nausea and vomiting, such as acute pancreatitis and acute appendicitis, it is not a kind of acute gastritis. In clinical practice, you can simply use acid suppressants to see if it is acute gastric mucosal damage. If a patient comes to the clinic at 5 pm with acute abdominal pain, you can take a PPI half an hour before dinner, such as resistance, so that the patient’s abdominal pain is obviously relieved, indicating that it is acute gastric mucosal damage and not gastric ulcer. Gastric ulcer is mainly persistent epigastric pain, heartburn lasts longer and more regular, and it is easy to recur in winter and autumn, spring, so use PPI for a long time, to 8-12 weeks, but also regular review of gastroscopy.