What is a common cause of duodenal ulcers?

Duodenal ulcers are often associated with increased acid production in the stomach, which contributes to the damaging effects on the duodenal lining. When there is an excess of gastric acid, it can overwhelm the protective mechanisms of the duodenum, leading to ulcer formation. Additionally, duodenal ulcers are commonly linked with the presence of Helicobacter pylori, a bacterium that can thrive in acidic environments and further exacerbate acid levels and mucosal damage.

While reduced acid production might suggest a lower risk of ulcers, it is the hyperacidity that plays a crucial role in the etiology of duodenal ulcers. Similarly, infections caused by viruses are not typically linked to ulcer formation, and excessive fiber consumption generally has protective effects on the gastrointestinal system rather than causing ulcers.