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A 30-year-old member asked:

Will more than one family member suffer from fragile x syndrome?

2 doctor answers4 doctors weighed in
Dr. Bryan Levey
Pediatrics 27 years experience
Possibly: It's a genetic problem, passed on by the mother. Every time a mother who is a carrier has a son, there is a 50% chance the son will be effected. Every time she has a daughter, there is a 50% chance the daughter will be a carrier, with the possibility of passing it on to her children.
Dr. James Ferguson
Pediatrics 46 years experience
Yes: The mother of the index kid may have some associated mild learning issues as would up to half her daughters. Any other male offspring have a 50% risk of getting the fragile X from her mother.

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Last updated Sep 3, 2016
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