July 22 is National Fragile X Awareness Day

Fragile X syndrome is the most common known cause of intellectual disability that can be inherited. CDC and its partners have been working on several public health activities to find out more about fragile X syndrome.

Fragile X is a group of genetic disorders that can affect individuals and their families in many ways because they are all caused by changes in the same gene, the Fragile X Mental Retardation 1 (FMR1) gene. The group of fragile X conditions includes:
Fragile X syndrome
Fragile X-associated tremor/ataxia syndrome (FXTAS) can cause tremors and problems with walking, balance, and memory. FXTAS occurs in some older men who have changes in the FMR1 gene.
Fragile X-associated primary ovarian insufficiency (FXPOI) can lead to infertility and early menopause. This condition affects some females who have changes in the FMR-1 gene.

Learn more about Fragile X syndrome from the CDC.