Healthy parents give birth to a baby with congenital heart disease …… Just the hypothesis can be devastating to many expectant mothers. Newborn babies with congenital heart disease account for 1% of all newborn babies in China and is one of the leading causes of death in newborns. Congenital heart disease not only directly affects the normal growth and development of the baby, increases the occurrence of lung infections and infective endocarditis, but also induces malignant arrhythmias. So how to prevent the fetus from getting congenital heart disease when you are pregnant? These factors should be noted during pregnancy 1. Avoid contact with toxic substances or being infected by viruses. Also, it is not advisable to keep pets during pregnancy. 2, for women during pregnancy should do to quit smoking and alcohol, avoid exposure to radiation. You should also watch less television and play computer, and should not decorate the bedroom during pregnancy. 3, if pregnant women suffer from diabetes, hyperthyroidism and other diseases, should take drugs under the guidance of a doctor. Pay attention to avoid taking drugs that can lead to fetal malformations. 4, itself suffering from serious diseases, such as diabetes, phenylpropionic acid ketonuria female patients, their fetuses induced congenital heart disease is also higher than the probability of normal people. Therefore, daily attention should be paid to avoid some bad habits, such as taking a hot bath, smoking, drinking alcohol or large amounts of coffee, cola, etc., which can easily lead to fetal malformations. 5, during pregnancy should avoid contact with mercury, aluminum, carbon monoxide and other toxic substances, they can affect the sperm and eggs in the human body, resulting in fetal malformations. 6, pregnant women should not be exposed to radiation, ultrasound, microwave, etc., which can affect the health of the fetus. 7.Avoid taking improper drugs. Especially in the 3rd-8th week of pregnancy. This period if the application of drugs affecting the fetus, it is easy to make the fetus born with congenital heart disease. 8, pregnant women should also pay attention to avoid the lack of micronutrients, malnutrition, excessive nutrition, excessive vitamin supplementation and other problems, which are also one of the risk factors that lead to the fetus induced congenital heart disease. 9, regular maternity checkups, you can do an ultrasound examination in the middle and late stages of pregnancy, as well as early detection of fetal heart problems. Ultrasound examination of the fetal heart is recommended from 20 to 24 weeks of pregnancy The fetal bones and limbs overlap, making it difficult for the ultrasound beam to enter. However, as the number of weeks of pregnancy increases, the heart rate at full term is about 120 beats per minute. The doctor further explained that the fetus depends on two umbilical arteries and one umbilical vein, especially through the mother’s placenta to obtain nutrients and oxygenated blood, will enter the body through the umbilical vein, usually the newborn’s blood circulation after birth will be different from that of the fetus, so even in the fetal period, open foramen ovale and open ductus arteriosus are normal, and if they are not closed after birth, it is feared to be congenital heart disease. In particular, open foramen ovale and open ductus arteriosus are normal. In particular, diseases such as open foramen ovale and open ductus arteriosus cannot be diagnosed through prenatal ultrasound. Therefore, if a newborn is found to have heart murmurs, breathing wheezing and other symptoms, he or she should seek medical examination as soon as possible; the physician will treat the newborn according to the symptoms and apply treatment to close the foramen ovale or ductus arteriosus, therefore, if detected and treated early, regrets can be avoided.