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