A duodenal ulcer is a type of peptic ulcer that can appear in the duodenum. The duodenum is the upper part of the small intestine that’s connected directly to the stomach where it empties into the ...

This story is part of a series exploring human anatomy and physiology complexities. Each story in this collection showcases discoveries reshaping our understanding of the body's inner workings, ...

A perforated duodenal ulcer can lead to severe complications, as it allows bacteria from the intestine to escape into and infect the lining of the abdomen. The infection can lead to sepsis, which can ...