National Fragile X Awareness Day

Celebrated on 07/22/2026

Quick Fact

National Fragile X Awareness Day is observed on July 22 each year. Fragile X syndrome is the most common inherited cause of intellectual disability and the leading known genetic cause of autism. The day was established to raise awareness and promote research for treatments and a cure.

Origins and Establishment of National Fragile X Awareness Day

National Fragile X Awareness Day was established in 2000 by the National Fragile X Foundation (NFXF) to increase public understanding of Fragile X syndrome. The date July 22 was chosen to commemorate the discovery of the FMR1 gene in 1991, which is responsible for the condition. The day aims to educate the public, support families, and encourage research.

Evolution and Modern Commemoration

Since its inception, the day has grown through partnerships with advocacy groups, research institutions, and healthcare providers. Events include educational seminars, fundraising walks, social media campaigns, and lighting landmarks in the Fragile X awareness colors (blue and green). The day now reaches a global audience, with participation from over 50 countries.

Facts & General Observations

• Fragile X syndrome affects approximately 1 in 4,000 males and 1 in 8,000 females worldwide.
• It is the most common inherited cause of intellectual disability and the leading known single-gene cause of autism spectrum disorder.
• The FMR1 gene mutation can also cause Fragile X-associated tremor/ataxia syndrome (FXTAS) and Fragile X-associated primary ovarian insufficiency (FXPOI) in older adults.

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