Table 1

European Pressure Ulcer Advisory Panel classification system24

Grade 1Non-blanchable erythema of intact skin. Discoloration of the skin, warmth, oedema, induration or hardness may also be used as indicators, particularly in individuals with darker skin
Grade 2Partial thickness skin loss involving epidermis, dermis, or both. The ulcer is superficial and presents clinically as an abrasion or blister
Grade 3Full thickness skin loss involving damage to or necrosis of subcutaneous tissue that may extend down to, but not through, underlying fascia
Grade 4Extensive destruction, tissue necrosis, or damage to muscle, bone, or supporting structures with or without full thickness skin loss