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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. * *Pressure ulcers, also known as bedsores * *Genital ulcer, an ulcer located on the genital area * *Ulcerative dermatitis, a skin disorder associated with bacterial growth often initiated by self-trauma * *Anal fissure, A.K.A an ulcer or tear near the anus or within the rectum * *Diabetic foot ulcer, a major complication of the diabetic foot *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 nl:Zweer pl:Wrzód ru:Язва (значения) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ulcer」の詳細全文を読む スポンサード リンク
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