Wound Staging

  • Stage I – redness, heat and edema involving the epidermis (non-blanchable erythema of intact skin), reversible with decreased pressure, dermis is not involved
  • Stage II – partial thickness skin loss with tear in epidermis, both epidermis/dermis are involved, infection and/or necrosis may be present
  • Stage III – full thickness skin loss involving damage or necrosis of subcutaneous tissue that may extend down to but not through underlying fascia, infection and/or necrosis may be present
  • Stage IV – full thickness skin loss with extensive destruction, tissue necrosis or damage to muscle, bone and supporting structures