7 doctors weighed in:

My son was recently tested for fragile x syndrome. How rare or common is fragile x?

7 doctors weighed in
Dr. Jay Park
Pediatrics
6 doctors agree

In brief: 1 in 4000-6000 male

Fragile x syndrome is the most common inherited form of intellectual disability, affecting 1 per 4000-6000 male.

In brief: 1 in 4000-6000 male

Fragile x syndrome is the most common inherited form of intellectual disability, affecting 1 per 4000-6000 male.
Dr. Jay Park
Dr. Jay Park
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