Stomach pain and blood in the stool with bright red blood, this condition may be fresh blood stool due to bleeding ulcers or ruptured blood vessels in the stomach. This condition is more critical. The upper gastrointestinal tract, including the stomach, bleeds, mostly in black or tarry stools, and the appearance of fresh blood stools may be due to the relatively large amount of bleeding in the stomach, which quickly passes through the small intestine and colorectum and is eventually discharged out of the body in bright red. This is a critical situation and should be treated early with blood transfusion, blood replacement and hemostasis. If necessary, emergency gastroscopic exploration should be done to find the specific cause of bleeding, and various methods such as ligature, electrocoagulation or suturing should be taken appropriately according to the bleeding site. If microscopic hemostasis is difficult, surgical investigation by emergency surgery is also required.