The difference between cleft lip and cleft lip and palate: First, the definition is different. In medicine, cleft lip is defined as a cleft lip with congenital lesions or caused by fire, and the affected child is not able to have perfect lips like normal people, usually showing that one or both sides of the lips are cleft; however, cleft palate is a cleft in the upper part of the mouth, showing that the whole mouth is cleft. Second, the repair time is different. Although both are particularly serious diseases, both have a certain possibility of recovery as long as they are repaired through surgery. In general, the best time to repair cleft lip is 2-3 months after birth; however, for cleft palate, we must be more cautious, and the best time to operate is within six months after the child reaches the age of one, which means that the risks involved in repairing the two are not the same. Thirdly, the principles of surgery are different. Medically, cleft lip is less traumatic than cleft palate, so the surgical principles are relatively conservative in the case of cleft palate. In many children with cleft palate, although they undergo repair surgery, there are certain hidden problems in post-operative recovery; however, children with cleft lip are not so serious and can generally recover after six months after surgery.