It is usually a life-long infection and may cause no problems. However, it is often associated with peptic ulcer. This leaflet answers questions that you may want to ask about H. pylori.
Peptic ulcers look like mouth ulcers.
Gastric ulcers are ulcers in the stomach, and duodenal ulcers are those of the duodenum. Research has shown that H. pylori is an important cause of peptic ulcers. H. pylori is a germ that can only infect human beings. Animals have similar bacteria, but they cannot infect humans. Hence, H. pylori must pass from one person to the next.