What defines pressure sore Stage 4?

Pressure sore Stage 4 is characterized by deep tissue damage that extends beyond the skin and involves muscle, tendons, or even bone. This stage represents the most severe level of pressure ulcer, where the wound has progressed significantly, showing extensive destruction and tissue necrosis. In this stage, the wound may be full-thickness, and slough or eschar may be present, which can obscure the depth of the injury.

Understanding the specific characteristics of each stage of pressure sores is crucial for proper assessment and management. Stage 4 pressure sores require immediate and comprehensive treatment interventions to prevent further complications and promote healing.