Hare-lip is indicated by a congenital fissure of the upper lip, and may be single or double, and may also be complicated with fissure of the hard and soft palates.


Pare the surfaces of the edges of the fissure in such a manner as will allow a flap on one to cover the edge of the other when they are brought in apposition, when they are secured by the aid of pins and the figure-of-eight suture, which, in the case of infants, may be preserved from injury by passing a silver wire through the cheeks, having on each protruding end a button, to prevent the breaking up of the suture during the act of crying. Cocaine is a useful local anaesthetic for such operations.