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A duodenal ulcer is one of two types of peptic ulcer—the other being gastric. Duodenal ulcers are open sores that form on the upper section of the small intestine or duodenum. Almost anyone can develop a peptic ulcer, but one of the most common causes is H. pylori. This infection occurs when the Helicobacter pylori bacteria infects the lining of the stomach. Peptic ulcers are a common problem with a modern day diet and rarely cause long-term issues. There are numerous symptoms of duodenal ulcers.

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1. Stomach Pain

Stomach pain, either dull or sharp, is the most common symptom of a duodenal ulcer. The abdominal pain will present under the sternum. Duodenal ulcers are rather easy to distinguish from gastric ulcers, as the pain tends to go away after you have eaten. Once the stomach is empty again, it will return. Usually, the pain will arise during the night while you are sleeping and can, unfortunately, wake you up.

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