[Gastric hyperplastic polyps and H. pylori infection, their relationship and effects of eradication therapy].

Gastric hyperplastic polyp is frequently found in the stomach. The polyp almost never occurs in normal gastric mucosa and is most commonly associated with chronic gastritis induced by H. pylori infection. Most gastric hyperplastic polyps disappear after eradication of H. pylori. Eradication therapy is safe, non-invasive, and reduces medical cost in comparison with polypectomy. It is now expected that H. pylori infection rate may decrease in the future, and H. pylori eradication treatment in Japan may become more common. Therefore, cases of gastric hyperplastic polyp and gastric cancer may decrease.