A Peptic ulcer is a small sore or
lesion in the lining of stomach or duodenum, the first part of the intestine.
This sore is often aggravated by stomach acid, but is usually not caused by the
acid itself. More likely, the cause is either a bacterium known as Helicobacter
pylori (H. pylori) or taking non-steroidal
anti-inflammatory drugs (NSAID...