Clinical expressions of Helicobacter pylori infection.

Helicobacter pylori infection is very common both in the United States and internationally. However, clinical manifestations of this infection vary markedly among different individuals. Apart from gastritis, which may be asymptomatic, patients may develop peptic ulceration or a gastric neoplasm. However, these patients represent a minority of patients infected with H. pylori. This article aims to review the different possible consequences of H. pylori infection.