What Causes Congenital Heart Defects?
If you have a child with a congenital heart defect, you may think you did something wrong during your pregnancy to cause the problem. However, most of the time doctors don’t know why congenital heart defects develop.
Heredity may play a role in some heart defects. For example, a parent who has a congenital heart defect may be more likely than other people to have a child with the condition. In rare cases, more than one child in a family is born with a heart defect. Children with genetic defects often have congenital heart defects. An example of this is Down syndrome—half of all babies with Down syndrome have congenital heart defects.
Scientists continue to search for the causes of congenital heart defects.
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