Turners Syndrome only affects 1 in 2500 women. It basically means that there is an X chromosome missing. It can cause all sorts of problems, such as with a girls height, eyes, ears, heart, back, neck etc. They may struggle in school with Maths, but to be honest I got grade D for my mock exam which is good! Its been going round Turners Syndrome sufferers can have mental retardation well this is NOT true! There is a high chance of not ever becoming pregnant due to the fact an X chromosome is missing and you can have no overies.