Cleft palate is more common and can occur alone or in combination with cleft lip. Cleft palate not only has soft tissue deformity, most of the patients with cleft palate can also be accompanied by different degrees of bone tissue defects and deformities, in sucking, eating and speech and other physiological dysfunction is far more serious than cleft lip. The main causes of cleft palate are as follows: 1. Tobacco and alcohol The incidence of cleft palate in the children of women who smoke and drink heavily in early pregnancy is higher than that of women who are not addicted to tobacco and alcohol, which is one of the possible factors leading to cleft palate in the fetus. 2, physical damage to the newborn’s cleft palate causes also include physical damage, such as in the period of fetal development, pregnant women frequent exposure to radiation or microwave, etc. may affect the growth and development of the fetus and the occurrence of cleft palate may be triggered. Warm tips: Cleft lip and palate is generally a congenital oral malformation, which is due to the baby in the fetal period, due to certain disease-causing factors that lead to the baby’s facial development difficulties, can not be normal and healthy growth, resulting in the phenomenon of cleft lip and palate. The occurrence of cleft lip and palate is mostly related to heavy smoking and alcohol abuse in early pregnancy and frequent exposure of pregnant women to radiation or microwaves, which must be emphasized during pregnancy to avoid the occurrence of this disease as much as possible.