What are the symptoms of duodenal ulcer vs. a stomach ulcer?

About the same: Regardless of size or location, if you really have an ulcer (found by x-ray or endoscopy) please seek doctor's advice. Even small ulcers can bleed (sometimes massively), perforate, obstruct stomach emptying. Sometimes, an ulcer can form in a cancer so to avoid this possibility it is important to make sure at least gastric ulcer actually heals. Relief of ulcer symptoms doesn't always mean healing.