The removal of foreign matter from a wound.
Surgical removal of dead tissue from wound.
Removal of dead or contaminated tissue from a wound to prevent infection, and, in the treatment of burns, where a skin graft is to be made.
Dead tissue is carved away by a scalpel till the wound bleeds heavily, to ensure the patient's blood supply will reach the graft. Research is being conducted into laser debridement in the US 1995.