<prompt> In third degree burns all are seen exceptPainfulVesicles are absentLeathery skinReddish due to HB infiltration  <response>: Third degree burns Full thickness burn Involve all layers of dermis Characterized by hard leathery eschar, that is painless and black, white or cherry red No capillary refilling or pin-prick sensation All dermal and epidermal components are lost Heals only by wound contractures Require excision with skin grafting to heal. Ref: Sabiston 20th edition Pgno :506-507 