McMaster University

Demystifying Medicine
Seminar Series

Peptic Ulcers

Peptic ulcers are open sores that develop on the inside lining of your stomach and the upper portion of your small intestine. The most common symptom of a peptic ulcer is stomach pain. Peptic ulcers include:
Gastric ulcers that occur on the inside of the stomach
Duodenal ulcers that occur on the inside of the upper portion of your small intestine (duodenum)

Mayo Clinic