Helicobacter pylori tests are used to detect a Helicobacter pylori. Helicobacter pylori (H. pylori) infection in the stomach and upper part of the small intestine (duodenum camera.gif). H. pylori can cause peptic ulcers. But most people with H. pylori in their digestive systems do not develop ulcers.
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Screening for the presence of Helicobacterpylori, a bacteria responsible for stomach ulcers.