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

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

Related Questions

My son was recently tested for fragile x syndrome. What is accuracy?

Very high. Fragile x is a problem found on the x chromosome, so it is inherited from the mother. Something called karyotyping is often done first, where the chromosomes are looked at under a microscope to see if they look normal. This is usually followed by dna testing that is very accurate. If the dna test is positive, it's positive. Read more...

What to do if I have a 22 year old son with fragile x syndrome. I was told that they are developing a drug that either cures?

Specialist. It depends upon what the symptoms are. Some people with this suffer from developmental, intellectual and emotional issuesthis is caused by the effects of the chromosomal abnormalities. There may eventually be medications that help the symptoms, but I am not aware of a cure as of yet. Seeing a specialist for these issues to develop a plan of therapy would be wise. Read more...

How common is fragile x syndrome in us?

Depends on your dfn. Significant impairment (iq<70) in FAS is felt to represent 1/3600 of the population, mostly male. A lesser form of involvement with lesser alterations in this gene (add, behavior issues) may affect 1/130-250 female & 1/250-800 males. See: www.Ncbi.Nlm.Nih.Gov/pmc/articles/pmc2888470/?Tool=pmcentrez. Read more...