Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Eschar
Introduction
From the Greek word eschara (scab) an eschar (Template:IPAEng) is a piece of dead tissue that is cast off from the surface of the skin, particularly after a burn injury, but also seen in gangrene, ulcer, fungal infections and late exposure to anthrax. Eschar is sometimes called a “black wound” because the wound is covered with thick, dry, black necrotic tissue.
Eschar may be allowed to slough off naturally, or it may require surgical removal (debridement) to prevent infection, especially in immunocompromised patients (e.g. if a skin graft is to be conducted).
If eschar is on a limb, it is important to assess peripheral pulses of the affected limb to make sure blood and lymphatic circulation is not compromised. If circulation is compromised, an escharotomy, or surgical incision through the eschar, may be indicated.
An escharotic is a substance that causes tissue to die and slough off. Examples include acids, alkalines, carbon dioxide, metallic salts, or electric cautery.
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Editor-In-Chief:
C. Michael Gibson, M.S., M.D. [1]