[Peptic ulcer disease and hemorrhagic gastritis with H. pylori infection]

Most of gastroduodenal diseases are associated with Helicobacter pylori infection. Cure of H. pylori infection may lead complete remission of recurrence of gastric and duodenal ulcer, and suppress the development of atrophic gastritis, gastric cancer and MALT lymphoma. H. pylori infection and hemorrhagic gastroduodenal diseases are reviewed.