"Helicobacter pylori (H. pylori) is a bacteria that can cause stomach irritation (gastritis), heartburn, nausea and bloating (dyspepsia), and ulcers in the stomach and intestine. H. pylori may also be a factor in the development of stomach cancer. This screening includes a variety of tests to aid in the diagnosis of gastrointestinal disorders. Abnormal results may require further evaluation by your physician."