Eschar

Eschar is a hard, dry, black scab or crust that is formed on dead tissue. It forms as a result of tissue necrosis due to severe burns, trauma, frostbite, or certain infections, such as anthrax or certain fungal infections. Eschar is an important marker for wound healing, and it is crucial for physicians to distinguish between healthy and infected eschars in order to prevent further damage and infection. In the medical field, eschar serves as a diagnostically useful indicator and is used to provide insight into the cause and treatment of a wound. Escharoplasty, or the surgical removal of eschar, is a common procedure to facilitate wound healing. Eschar is also important for cosmetics, as it is used to provide coverage for skin grafts or to act as a sealant to keep skin grafts in place.