Better Health Channel
betterhealth.vic.gov.au Department of Health
betterhealth.vic.gov.au Department of Health
  • Fragile X syndrome is the most common inherited cause of intellectual disability.
  • About 1 in 3,600 boys and 1 in 4,000–6,000 girls have Fragile X syndrome.
  • The effects of Fragile X syndrome vary widely but most people experience lifelong difficulties.
  • Both men and women can be carriers of the Fragile X gene. Female carriers of the Fragile X gene are at risk of having one or more children with Fragile X syndrome.

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Reviewed on: 03-12-2018