From Wikipedia, the free encyclopedia
An ulcer is a discontinuity or break in a bodily membrane that impedes the organ of which that membrane is a part from continuing its normal functions. Common forms of ulcers recognized in medicine include:
- Ulcer (dermatology), a discontinuity of the skin or a break in the skin.
- Corneal ulcer, an inflammatory or infective condition of the cornea
- Mouth ulcer, an open sore inside the mouth
- Aphthous ulcer, a specific type of oral ulcer also known as a canker sore
- Peptic ulcer, a discontinuity of the gastrointestinal mucosa (stomach ulcer)
- Venous ulcer, a wound thought to occur due to improper functioning of valves in the veins
- Stress ulcer, located anywhere within the stomach and proximal duodenum
- Ulcerative sarcoidosis, a cutaneous condition affecting people with sarcoidosis
- Ulcerative lichen planus, a rare variant of lichen planus
- Ulcerative colitis, a form of inflammatory bowel disease (IBD).
- Ulcerative disposition, a disorder or discomfort that causes severe abdominal distress, often associated with chronic gastritis
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