Pressure ulcer

Staging

1. Stage I: non-blanchable erythema
2. Stage II: partial-thickness loss of skin with exposed dermis
3. Stage III: full-thickness loss of skin, in which adipose (fat) is visible
4. Stage IV: full-thickness skin and tissue loss with exposed or directly palpable fascia, muscle, tendon, ligament, cartilage, or bone in the ulcer
5. Unstageable: with overlying eschar