A member asked:

If you have klinefelter syndrome, can your blood tests have normal testosterone levels?

A doctor has provided 1 answer
Dr. Alvin Lin answered

Yes: Check out http://www.mayoclinic.org/diseases-conditions/klinefelter-syndrome/basics/definition/con-20033637. Not everyone w/Klinefelter syndrome (extra X chromosome) develops all signs & symptoms. However, given that Klinefelter syndrome typically affects testicular development, it's unlikely for someone to have high normal T levels. So while T may be normal, most likely, it's low normal.

Answered 12/16/2015

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