Peptic ulcers are open sores that occur when the protective mucosal (mucus) layer in the lining of your stomach or small intestine becomes damaged. This causes the stomach acid to tear into the ...

With peptic ulcer disease, sores can develop on the inside lining of the stomach and part of the small intestine, causing belly pain, nausea, vomiting or feelings of bloat and fullness.

Peptic ulcers can be defined as damage or sores on the lining of the digestive track; stomach, esophagus and small intestine.

Did you know if you unfolded your intestines, they'd be taller than a giraffe? Yep, they form a digestive tube so lengthy it's got two sections. The so-called small intestine is about 22 feet long ...