Macrodactyly of the hand is a rare condition in which a person's fingers are abnormally large due to the overgrowth of the underlying bone and soft tissue. Although babies are born with the condition, macrodactyly is usually not inherited. Most of the time, only one hand is affected, but usually more than one finger is involved. Macrodactyly may also coexist with syndactyly (two fingers are fused together) or clinodactyly (a finger, usually the pinky, is curved toward another finger).