What is congenital cleft lip and palate?

Congenital cleft lip and palate is commonly known as "rabbit lip". When the child is born, the upper lip presents a partial or complete split state, which is called congenital malformation in medicine. Congenital cleft lip and palate seriously affects the appearance of the face, and can also induce upper respiratory tract infection, otitis media, malnutrition and so on.