black heel and palm black heel and palm black heel and palm is a skin condition characterized by a sudden shower of minute, black, punctate macules occurring most often on the posterior edge of the plantar surface of one or both heels.: 43 black heel and palmother namescalcaneal petechiae, chromidrose plantaire, post-traumatic punctate intraepidermal hemorrhage, tache noir, and talon noirspecialtydermatology