How common is FXTAS in female carriers?
Although FXTAS has now been shown to occur in a small fraction of female carriers [ www.fragilex.org/html/fxtas.htm The Identification of FXTAS in Rare Carrier Females], the exact numbers are not yet known. We do not yet understand why relatively few female carriers develop FXTAS. One reason may be the milder symptoms experienced by some females, but many others dont seem to have any problems.
