What is the extent of subdermal burns, also known as fourth-degree burns?

Subdermal burns, classified as fourth-degree burns, penetrate deeply into the body's tissues. This type of burn goes beyond the skin layers, affecting not just the epidermis and dermis (the outer skin layers), but extending into the subcutaneous tissues as well as fascia, muscles, and potentially reaching the bone.

The severity of a fourth-degree burn is represented by significant tissue damage, leading to complications such as necrosis and loss of sensation due to the destruction of nerve endings. The clinical implications of such burns are profound, often requiring extensive medical treatment, surgical intervention, and prolonged recovery, sometimes resulting in amputation or reconstructive surgery. Understanding this depth of injury is crucial for appropriate treatment and management strategies in Tactical Combat Casualty Care and other medical contexts.