06/04/2026
One way of telling if you may have a gastric or duodenal ulcer is to figure out where and when your symptoms occur.
Gastric and duodenal ulcers are both types of peptic ulcers. These ulcers can cause different symptoms, depending on where they are. A peptic ulcer on the inside of the stomach lining is a gastric ulcer, while one on the upper part of the small intestine is a duodenal ulcer. Learn what your symptoms...