Why does stomach bleeding cause coma

Because stomach bleeding can cause a decrease in blood volume throughout the body when the bleeding volume is relatively large, it can lead to ischemia and hypoxia in the brain, so a coma can occur. This is a manifestation of shock, which means that gastric bleeding can cause hemorrhagic shock, so patients must pay attention to it. When symptoms of gastric bleeding are detected, such as black or bloody stools, vomiting blood, dizziness, panic, cold sweat, weakness, and fainting, you need to go to the hospital immediately. In most cases for gastric bleeding it is common for peptic ulcers, and the bleeding is often not very large. In contrast, ruptured esophagogastric fundic varices bleed very heavily and can directly cause hemorrhagic shock and lead to the patient’s death. So when a patient has a gastric bleeding condition or a high suspicion of gastric bleeding, he or she needs to be seen in the hospital in time to avoid serious adverse events.