Duodenal ulcers are sores that develop in the first part of the small intestine called the duodenum. They can cause pain and discomfort in the upper abdomen, often described as a burning or gnawing sensation. These ulcers are usually caused by a combination of factors, including an infection with bacteria called Helicobacter pylori and long-term use of certain medications like nonsteroidal anti-inflammatory drugs (NSAIDs). Treatment usually involves medications to reduce stomach acid and antibiotics to target the infection.
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