A member asked:

Is it genes or lifestyle or both that make it likely to get congenital abnormalities?

7 doctors weighed in across 2 answers

Genes: Congenital anomolies usually stem from a genetic origin, whereas environmental or lifestyle can cause syndromes, such as fetal alchohol syndrome.

Answered 5/3/2015

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Congenital anomalies: Your background human risk of having a baby with a congenital anomaly is 2 - 3 %. Breaking down the causes of congenital anomalies finds that 90% have some genetic component. Only 10% are caused by things happening during the pregnancy, such as illnesses, infections, exposure to radiation, drugs, and chemicals. So the genetic component is far more associated with anomalies than any lifestyle issue.

Answered 3/13/2013

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