Ulceration and bleeding from the duodenal bulb is a very common clinical condition. If the bleeding is so heavy that it leads to hemorrhagic shock, that is, bleeding of 1000 ml or more, or 20% or more of the circulating blood volume. This leads to shock, drop in blood pressure, dizziness, cold sweat, fine and rapid pulse rate, and decrease in urine output, etc. It is clinically called upper gastrointestinal hemorrhage, which is an emergency and serious case and needs to be treated quickly. The treatment is mainly to establish intravenous access quickly, rehydrate and transfuse blood quickly, and administer anti-shock treatment on this basis. Therefore, ulceration and bleeding in the duodenal bulb is a very serious situation if hemorrhage has led to hemorrhagic shock. A small amount of bleeding, such as blood in the stool or when the OB test is positive is relatively mild, the main thing is to clarify the cause of the bleeding duodenal bulb ulcer, and symptomatic treatment will cure it.