Rett Syndrome Association of Australia | Is Rett syndrome hereditary?
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Is Rett syndrome hereditary?

 

Rett syndrome is not an hereditary condition, even though its cause is genetic. In 99% of diagnosed cases, the genetic mutation has been a spontaneous event which meant that it occurred randomly. However, this has not been the situation in 1% of recorded cases as the mutation was inherited or passed from one generation to the next.