Your browser does not support javascript:   Search for gard hereSearch for news-and-events here.


Genetic and Rare Diseases Information Center (GARD)

Print friendly version

48,XXYY syndrome

Other Names for this Disease
  • 48,XXYY Klinefelter syndrome
  • 48,XXYY variant of Klinefelter's syndrome
  • XXYY syndrome
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.

Your Questions Answered

1 question(s) from the public on this disease have been answered. Submit a new question.
  • We just found out that our grandson has 48,XXYY syndrome. We have an appointment with genetic doctors in a couple of weeks.  I was wondering if you could give us some information on what to expect and the prognosis for this and what we have to look forward to with him.   
    Click here for answer