7. Classifications of the Burn Wound Hard, leather-like eschar, purple fluid, no sensation (insensate) Dermis and underlying tissue and possibly fascia , bone , or muscle Third- or Fourth-degree Full thickness Whiter appearance Deep (reticular) dermis Second-degree Partial thickness — deep Blisters, clear fluid, and pain Superficial (papillary) dermis Second-degree Partial thickness — superficial Erythema , minor pain, lack of blisters Epidermis involvement First-degree Superficial thickness Clinical Findings Depth Traditional Nomenclature Nomenclature