A Peptic Ulcer is a sore or break in the lining of any part within the digestive tract that contains concentrated gastric juice. The main components of gastric juice are water, mucus, hydrochloric acid, enzymes, and electrolytes. Ulcers most commonly occur in the first part of the small intestine below the stomach (duodenum), and can occur at the lower end of the esophagus or in the stomach.
