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A member asked:
What would cause a baby to be born with an extra thumb?
15 doctors weighed in across 2 answers
Genetics: The most common answer is a genetic "glitch" or anomaly...Look into the family history and I am willing to wager it is not the first time that that occurence has happened; also easily treatable nowadays.
Answered 7/15/2014
6.2k views
Thank
See below: Sometimes a syndrome (odd features) sometims just by chance.
Answered 9/28/2016
6k views
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