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H. pylori

Helically-shaped bacterium found in
the stomach that cause infection

Helicobacter pylori

Helicobacter pylori or H. pylori is a microaerophilic bacterium usually found in the stomach. Its helical shape is thought to have evolved in order to penetrate the stomach lining thereby establishing infection. The acid and bacteria irritate the lining of the stomach and can cause an ulcer to form. If left untreated H. pylori can cause gastritis (inflammation of the lining of the stomach) and could also progress into peptic ulcer disease or stomach cancer eventually.

Symptoms of H. pylori could include a burning pain in the abdomen, abdominal pain that worsens on an empty stomach, nausea, loss of appetite, bloating, and unintentional weight loss.

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