Scientists discover cause of port-wine stain birthmarks

May 9, 2013 2:49:54 PM PDT
In what is being called a milestone discovery in the field of genetics, scientists say they have finally discovered what causes babies to be born with port-wine stain birthmarks.

And also another condition called Sturge-Weber syndrome.

It's a related condition that often leads to lifelong struggles with blindness, seizures and mental disabilities.

Scientists say it's a single random change to a single gene after conception that causes both of these conditions.

They add that this discovery now means that doctors can immediately move on to the idea of what to do about it , instead of just treating the symptoms.