How many people are affected or at risk of Turner syndrome?

Turner syndrome affects about 1 of every 2,500 female live births worldwide.¹

This disorder affects all races and regions of the world equally. There are no known environmental risks for Turner syndrome. Parents who have had many unaffected children can still have a child with Turner syndrome later on.

Generally, Turner syndrome is not passed on from mother to child. In most cases, women with Turner syndrome are infertile.