What is a stomach ulcer?

An ulcer is an open sore in the lining of your stomach, small intestine or esophagus. In this video, gastroenterologist Roshini Raj, MD, explains the most common causes of ulcer formation, including H. pylori bacteria and OTC pain relievers.

Peptic ulcers can occur without any symptoms at all, but there are a few signs that you can look for.

Learn what could be causing your stomach distress, plus how to treat it.

Turns out, there's a proper technique you should know about.

You may have heard that swallowed gum stays in your stomach for seven years – but is it true?

To eat or not to eat? When you have acid reflux—that is the question.