Cleft palate is more common and can occur alone or as a complication of cleft lip. In recent years, thanks to leaps and bounds in plastic surgery, children with cleft lip and palate can be corrected early. Early prevention is even more important. With the increased availability and accuracy of ultrasound, the fetal lip and nose can be clearly distinguished at 15 weeks of gestation using a high-resolution probe, and cleft lip and palate can be detected for the first time at 3 months of gestational age. So, how can cleft lip and palate be prevented? The following are preventive measures for cleft lip and palate: 1, emotional stability: when pregnant women have bad emotions such as worry, anxiety, irritability and fear, adrenocorticotropic hormones may hinder the fusion of certain tissues of the embryo, causing fetal cleft lip or cleft palate. 2, nutritional balance: the mother is the only source of nutrition for the fetus. During pregnancy, a balanced and diverse diet is very important. Everything you eat and drink while pregnant will have an impact on the baby. Eat more vegetables and fresh fruits and less food containing sugar, salt and processed foods. 3.Avoid colds: The survey found that many mothers of cleft lip and palate children had colds in the pre-pregnancy period, which is one of the important factors leading to cleft lip and palate. 4, careful use of drugs: application of hormones or anti-tumor drugs, anti-histamine drugs during pregnancy may lead to fetal malformations. 5, early treatment of diseases: pregnant women with diabetes, anemia, gynecological diseases and hypothyroidism should be treated as early as possible. 6, pay attention to marriage and maternity checkups: it is best to conduct the first screening through marriage checkups before marriage to detect genetic diseases such as cleft lip and palate. In addition, the fetus at 20 to 24 weeks experienced doctors can see from the ultrasound examination whether the fetus has limb stumps and other more obvious deformities. 7, quit smoking and alcohol: a study in Mexico showed that “cleft lip and palate” is due to the development of the upper lip and palate of the baby during the embryonic period is obstructed, pregnant women long-term smoking and alcohol abuse leading to abnormal development of the embryo is one of the reasons. 8, to prevent viruses: women during pregnancy should pay special attention to prevent rubella and other viral infections. 9, away from radiation: young couples in the first three months of the decision to get pregnant, try to avoid contact with radioactive supplies, now many pregnant women until the birth of normal work, many offices are open places, piled with computers, dozens of cell phones used at the same time, very detrimental to the health of the fetus. 10, master the timing of childbirth: doctors say that parents under 20 and over 35 years old have the greatest possibility of producing deformed children, because under 20 years old is not fully mature, while over 35 years old has begun to age, therefore, it is best for women to have children between the ages of 25 and 30.