A member asked:

My son has de novo 0.20mb 6q21 duplication. i drank 34 us standard drinks 4 days before estimated conception date from 11 week dating scan, which is within the +/- 7 day margin of error for dating scan. is it possible the alcohol caused this?

A doctor has provided 1 answer

It is likely the chromosomal abnormality existed in the egg (or sperm) before it was released. In medicine we are taught to never say never, but this type of random event is difficult to pin on a specific triggering mechanism.

Answered 3/9/2022

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