Approximately 100,000 individuals in the United States have fragile X syndrome, many of them undiagnosed.
More than 1 million people have or are at risk of developing a Fragile X-associated Disorder.
The National Fragile X Foundation supports and connects families affected by Fragile X, providing educational and emotional support to families, promoting public and professional awareness, and advancing research toward improved treatments and a cure for Fragile X.
What is Fragile X?
- fragile X syndrome (FXS), the most common cause of inherited intellectual disability; it causes behavioral disorders and speech and language delays that manifest in early childhood.
- fragile X-associated tremor/ataxia syndrome (FXTAS), an adult onset neurological disorder causing tremors, balance and memory problems, and cognitive decline.
- fragile X-associated primary ovarian insufficiency (FXPOI), a condition that causes irregular menstrual cycles, infertility, and premature menopause in females of reproductive age.
The NFXF needs your help!
Help us carry out our wide-reaching mission by raising money through your own personal fundraising page!
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We cannot do this work without the support of generous donors. Thank you for taking the time to make a big difference for those affected by Fragile X!










