Hematemesis
What is hematemesis?

What are the possible causes of hematemesis?
1. Bleeding ulcers. A peptic ulcer is an open sore in your stomach or duodenum. It’s often caused by a bacterial infection, or by the regular use of NSAIDs or aspirin.
2. Acute inflammation. Inflammation of your esophagus or stomach lining can cause bleeding from the arteries underneath. Heavy alcohol use, aspirin and NSAIDs, and severe acid reflux are common causes.
3. Enlarged blood vessels that rupture. Portal hypertension, a consequence of cirrhosis, causes increased pressure in your abdominal veins. This can lead to enlargement of the veins in your esophagus and stomach, making them fragile and easy to break. Bleeding from these varices can be extremely serious.
4. Chronic pancreatitis. Long-term pancreatitis can damage the blood vessels surrounding your pancreas, leading to rupture and bleeding. The blood can travel into your duodenum.
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