Every year, about 7.9 million infants (6% of worldwide births) are born with serious birth defects. With the causes of over 50% of birth defects unknown, how do we diagnose and prevent them?

The rarest type of polydactyly affects the fourth finger (ring finger) or the second toe (next to your big toe). Ten known syndromes (groups of associated symptoms) are linked to polydactyly ...

It’s sort of like a nubbin.” Polydactyly, the name of the condition of being born with an extra finger or toe, is "is the most common congenital limb difference", according to John Hopkins ...