GetTested’s Peptic ulcer test tests for antigen against Helicobacter pylori (H. pylori) in the stool. H. pylori is a bacterium that can be found in the lining of the stomach. An infection with H. pylori can lead to gastritis of varying severity. However, most people with an H. pylori infection do not experience any symptoms at all. About 5% of those infected develop peptic ulcers, which is the only condition that requires medical treatment of the infection.Alongside testing for H. pylori, if you’re experiencing stomach discomfort, our SIBO Test might also be beneficial to consider, as symptoms like abdominal pain can also stem from conditions such as SIBO.