Cleft lip and palate are the kinds of craniofacial deformities. Cleft lip can be basically of two types: unilateral and bilateral cleft lips. A cleft lip can also be a complete one or an incomplete one. In an incomplete cleft lip, the nose is not involved. In a complete cleft lip either a unilateral or bilateral cleft, the nose is also involved, and a cleft in the nose is seen.