Actor David Tennant has confirmed he has a rare condition called polydactyly, meaning he has an extra toe on his right foot. The condition, giving him a total of 11 toes, was first noticed by fans ...

Polydactyly, a genetic condition, causes individuals to be born with extra fingers or toes. Usually harmless and hereditary, it results from a mutatio ...

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?