In medicine, a wound's a type of injury in which skin's 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. Types of wounds Open Open wounds can be classified according to the object that caused the wound. The types of open wound are: Incisions or incised wounds, caused by a clean, sharp-edged object such as a knife, a razor or a glass splinter. La… (More on Laceration)