Millions of people with a history of peptic ulcer disease continue to receive unnecessary treatment, according to researchers at the University of Michigan Medical Center. The study, which was recently published in the American Journal of Gastroenterology, concluded that people with ulcer disease who are being treated with acid-blocking medication should now be tested to determine if they harbour the H. pylori bacteria - whether or not they have any ulcer symptoms. The researchers reported that prompt diagnosis and treatment for H. pylori infection improved patient health and saved money.