Upper gastrointestinal bleeding is also relatively common clinically. The most common causes mainly include the following points: the first is bleeding from gastric and duodenal ulcers, the second category is esophageal and gastric fundal variceal rupture caused by liver cirrhosis, the third category includes bleeding caused by stress ulcers and acute erosive gastritis, and another category includes bleeding caused by gastric cancer, etc. After upper gastrointestinal bleeding occurs, blood transfusion should be administered to replenish blood volume and stop the bleeding. If conditions allow, a complete gastroscopy should be performed for endoscopic hemostasis. If drug treatment is not effective, surgical treatment may be considered, etc.