An ulcer is any break in the skin or in a mucous membrane. Mucous membrane is a thin tissue that lines the interior surface of body openings. The term ulcer is used most commonly to refer to ulcers that occur in the upper part of the digestive system,...

Peptic ulcers are painful open sores or lesions in either the stomach (gastric ulcers) or duodenal lining (duodenal ulcers). Ulcers affect more than four million people each year and account for approximately 40,000 surgeries and six thousand deaths....

Concave sore on the skin or lining of an organ, with well-defined, sometimes raised edges. Erosion of surface tissue may extend to deeper layers. The main symptom is pain. The term most often refers to peptic ulcer but also includes skin ulcer, common...

A breach in the surface of the skin or mucous membrane of the body. It is characterised by having resulted in the activation of the body healing mechanism (suppuration, redness, etc.) but in which the healing process is slow in concluding or fails to...

Ulcers are healing wounds that develop on the skin, mucous membranes or eye. Although they have many causes, they are marked...