The organism Helicobacter pylori (H. pylori) is known to be the causative factor in many ulcers occurring in, or just out-side, the stomach. It has also been associated with an increased risk of ...

A peptic ulcer is a sore that forms when digestive juices wear away the lining of the digestive system. It may occur in the lining of the stomach or duodenum. A peptic ulcer can affect several ...