A peptic ulcer is a sore in the lining of the stomach or duodenum.
The majority of peptic ulcers are caused by the H. pylori bacterium. Many of the other cases are caused by NSAIDs. None are caused by spicy food or stress.
H. pylori can be transmitted from person to person through close contact and exposure to vomit.
Always wash your hands after using the bathroom and before eating.
A combination of antibiotics and other drugs is the most effective treatment for H. pylori peptic ulcers.