Duodenum

woman with abdominal pain

Medical Definition of Duodenum

Duodenum: The first part of the small intestine. The duodenum is a common site for peptic ulcer formation.


Quick GuideDigestive Disorders: Common Misconceptions

Digestive Disorders: Common Misconceptions

Subscribe to MedicineNet's General Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Reviewed on 5/13/2016

Health Solutions From Our Sponsors