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A wound is a type of injury which happens relatively quickly in which skin is torn, cut, or punctured (an ''open'' wound), or where blunt force trauma causes a contusion (a ''closed'' wound). In pathology, it specifically refers to a sharp injury which damages the dermis of the skin. ==Classification== According to level of contamination a wound can be classified as * clean wound, a wound made under sterile conditions where there are no organisms present in the wound and the wound is likely to heal without complications. * contaminated wound, where the wound is as a result of accidental injury where there are pathogenic organisms and foreign bodies in the wound. * infected wound, where the wound has pathogenic organisms present and multiplying showing clinical signs of infection, where it looks yellow, oozing pus, having pain and redness. * colonized wound, where the wound is a chronic one and there are a number of organisms present and very difficult to heal as in a bedsore. 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「Wound」の詳細全文を読む スポンサード リンク
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