Main content Helicobacter Pylori Tests

    Helicobacter Pylori Tests



    Test Overview

    Helicobacter pylori tests are used to detect a Reference Helicobacter pylori Opens New Window (H. pylori) infection in the stomach and upper part of the small intestine (Reference duodenum Opens New Window). H. pylori can cause Reference peptic ulcers Opens New Window. But most people with H. pylori in their digestive systems do not develop ulcers.

    Four tests are used to detect H. pylori:

    • Blood antibody test. A blood test checks to see whether your body has made Reference antibodies Opens New Window to H. pylori bacteria. If you have antibodies to H. pylori in your blood, it means you either are currently infected or have been infected in the past.
    • Urea breath test. A urea breath test checks to see if you have H. pylori bacteria in your stomach. This test can show if you have an H. pylori infection. It can also be used to see if treatment has worked to get rid of H. pylori.
    • Stool antigen test. A stool antigen test checks to see if substances that trigger the Reference immune system Opens New Window to fight an H. pylori infection (H. pylori Reference antigens Opens New Window) are present in your feces (stool). Stool antigen testing may be done to help support a diagnosis of H. pylori infection or to find out whether treatment for an H. pylori infection has been successful.
    • Stomach biopsy. A small sample (Reference biopsy Opens New Window) is taken from the lining of your stomach and small intestine during an Reference endoscopy Opens New Window. Several different tests may be done on the biopsy sample. For more information, see the medical test Reference Upper Gastrointestinal Endoscopy.



    By: Reference Healthwise Staff Last Revised: Reference January 4, 2012
    Medical Review: Reference E. Gregory Thompson, MD - Internal Medicine
    Reference Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology


    This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Reference Terms of Use. Reference How this information was developed to help you make better health decisions.


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