Gastric ulcer is a gastrointestinal disease. Therefore, it requires consultation in the department of gastroenterology or gastroenterology clinic. Gastric ulcer is caused by infection with Helicobacter pylori, inappropriate medication use, irregular diet, or certain psychological factors, and can arise in emergency situations. It presents with periodic, rhythmic upper abdominal pain, more often occurring in the autumn and winter seasons, and can be diagnosed through gastroscopy. For treatment, methods mainly include triple therapy or quadruple therapy to eradicate Helicobacter pylori and facilitate gastric recovery.