Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

boy on beach

Fragile X syndrome (FXS) is one of the most common causes of inherited intellectual disability. CDC is working to learn more about fragile X syndrome and fragile X-associated disorders to improve the health and well-being of people with these conditions.

Uncover the facts

MYTH BUSTERS

Think you know fragile X? Guess again.

Video on the causes of Fragile X syndrome

Video: Causes of Fragile X

Watch this video to learn about the causes of Fragile X Syndrome.

Boy siwning on a swing in the basement

OUR WORK

Researchers at CDC are working to better understand how this complex condition affects individuals and their families.

TOP