Q: I would like to ask if I can get pregnant if I have congenital heart disease? Will it be dangerous? A: There are many types of congenital heart disease. If it is a simple shunt, it will not affect the pregnancy. The main thing is that the blood volume will increase when you are pregnant, which may cause potential risks. If you have congenital heart disease, it is best to have your heart function evaluated by a cardiologist if you plan to get pregnant to see if you can take on the increased blood volume. Avoid possible risks. Q: Is congenital heart disease hereditary? A: The cause of congenital heart disease is still unclear, and genetics accounts for less than 10% of it. Only a very small percentage of congenital heart disease is inherited. Other factors include pollution, radiation and other environmental factors, infection during pregnancy, and a few specific viruses that are associated with congenital heart disease. Q: At what age is the best time to operate for congenital heart disease in children? A: The type and severity of congenital heart disease is different for each individual, and there is no definite time for surgery. Usually general atrioventricular defects can be operated or interventionally treated before school age if there is no cardiac insufficiency or pulmonary hypertension. Early surgery needs to be considered if the child is lagging behind in growth, has feeding difficulties, and has recurrent respiratory infections. A small number of complex congenital heart diseases require early intervention in the neonatal period after birth. It is recommended to listen to the guidance of a professional doctor. Q: Is surgery always necessary for ventricular septal defect? A: There are several types of ventricular septal defects according to the anatomical type, and the most common type is perimembranous type. The chance of self-healing of perimembranous ventricular defects varies, and can be as high as 50%. If combined with pulmonary hypertension and cardiac insufficiency, early surgery can be performed.