This infection occurs when Helicobacter pylori (H. pylori) bacteria infects the stomach.
H. pylori is a bacteria that grows in the digestive tract and attacks the stomach lining. This bacteria can cause dyspepsia (indigestion) and complications such as peptic ulcer disease and gastric malignancies. Infected individuals have a 10-20% lifetime risk of developing peptic ulcers and a 1-2% risk of gastric cancer.
H. pylori is a common chronic bacterial infection that is present in over 50% of the world’s population, although its prevalence has been gradually declining in the Asia-Pacific region. In Singapore, the seroprevalence rate is 31%.1