Duodenal bulbar ulcers are generally associated with excessive gastric acid secretion. a1 stage is when the ulcer is in the acute active phase and bleeding is caused by erosion of the capillaries in the intestinal wall. Patients can be relieved by fasting as well as medications and endoscopic hemostasis. Patients should fast when they are in the bleeding phase. The usual diet needs to avoid spicy and stimulating or high temperature and too acidic food, try to eat semi-liquid food such as millet porridge, noodle soup, and eat more fruits and vegetables. In addition, if the condition is more serious, you can use omeprazole, ranitidine, teprenone and other drugs that can inhibit the secretion of gastric acid under the guidance of a doctor. For patients with bleeding ulcers, endoscopic hemostasis can be performed by spraying thrombin on the ulcer surface, injecting epinephrine into the bleeding site, clamping the bleeding point and thermal coagulation. If the above methods cannot improve the bleeding duodenal bulb ulcer, surgery is recommended as soon as possible.