What is the defining feature of a stage 3 pressure ulcer?

A stage 3 pressure ulcer is characterized by full thickness loss of skin that extends into the subcutaneous tissue but does not involve underlying fascia. This means that the ulcer has penetrated through the epidermis and dermis, revealing deeper tissues. At this stage, the wound may present with visible adipose (fat) tissue, and there may be some undermining and tunneling, but muscle, bone, or tendon are not exposed.

This understanding is essential as it guides the treatment plan; stage 3 ulcers require more comprehensive management due to the depth of tissue damage, increased risk of infection, and the need for proper wound care interventions. Identifying this stage accurately helps in preventing further complications and facilitates better healing outcomes.