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What Is Fragile X Syndrome?

Fragile X syndrome (FXS) is a genetic condition that causes intellectual disability, behavioral and learning challenges, and various physical characteristics. Though FXS occurs in both genders, males are more frequently affected than females, and generally with greater severity. Life expectancy is not affected in people with FXS because there are usually no life-threatening health concerns associated with the condition.

We provide unwavering support for every family affected by Fragile X, while relentlessly pursuing a cure.

Explore Fragile X

Learn About Fragile X

Learn about Fragile X and read in-depth articles for daily living strategies.

Join The Community

Find events and local community groups near you.

Discover Research

Find a clinic and get involved in current research projects.

Spotlight: Riley Lynch

Spotlight:
Riley Lynch

Riley was born with Fragile X, and when he was first diagnosed, his parents were told he would never walk, talk, or do much of anything. Today, Riley is 10 years old, a wonderful student, and is making his own dream come true: his dream of becoming an astronaut.

Read Riley's Story

Our Mission

Awareness - To increase public and professional awareness of Fragile X to influence public policy, support legislative advocacy, and increase funding for research.

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What Is Fragile X Syndrome?

Spotlight: Riley Lynch

Spotlight:Riley Lynch

Our Mission

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News and Features

After the Autism Diagnosis: What You Need to Know About Genetic Testing

Sign-Up for In-District Congressional Meetings

Should I Use Cogmed Intervention for Memory and Attention in Fragile X Syndrome?

A Computer-based Intervention for Memory and Attention in Fragile X Syndrome

Share Your Special ‘Face of Fragile X’

Upcoming Events

Bike To X Out Fragile X

Moms, Siblings, and Self-Advocates Night Out

X Strides 2019 – Northern California

X Strides Chicago 2019

Golf To X Out Fragile X

2019 Fragile X and Autism Educational Conference

X Strides 2019 Heartland - Iowa

Spotlight:
Riley Lynch