Question: what is the difference between h pylori and ulcer?
Answer: An ulcer is an open sore. Peptic ulcers develop in the lining of the stomach or upper part of the small intestine (duodenum). An ulcer in the stomach is called a gastric ulcer, and an ulcer in the duodenum is called a duodenal ulcer. Most ulcers are caused by bacteria called Helicobacter pylori (H.