what causes a duodenal ulcer
The most common cause of duodenal ulcer is a stomach infection associated with the Helicobacter pylori (H pylori) bacteria. Other risk factors for duodenal ulcers include overuse of alcohol, tobacco, and medications such as aspirin and nonsteroidal anti-inflammatory drugs (NSAIDs).n the case of H pylori-related duodenal ulcer, the infection can be treated successfully with antibiotics. For a duodenal ulcer not related to H pylori, antacids or other medications are an effective treatment.