Helicobacter Pylori (H. Pylori) Infection

If your healthcare provider suspects H. pylori bacteria may be causing a stomach ulcer, they may order one or more of the following tests:

• A breath test: In this test, you exhale into a bag before and after drinking a solution. The test measures the amount of carbon dioxide released in your breath before and after drinking the solution. A higher level after drinking the solution means H. pylori are present.
• A stool test: This test looks for evidence of H. pylori in a stool sample.
• Upper endoscopy: A flexible tube is inserted down the throat into the stomach. A small tissue sample from the stomach or intestine lining is taken for testing for the presence of H. pylori.