This document provides information about cleft lip and palate. It defines cleft lip and palate as variations of congenital deformities caused by abnormal facial development in utero. Cleft lip occurs when the lip does not fully fuse, appearing as a small gap or indentation, and can be unilateral or bilateral. Cleft palate is an incomplete fusion of the hard palate, appearing as a hole. Treatment involves surgery, with cleft lip repaired within the first few months and cleft palate between 6-12 months, along with specialized feeding techniques and speech therapy. Cleft lip and palate have genetic and environmental causes and can be diagnosed prenatally via ultrasound.