efken+diagnosis


 * __Diagnosis__**

​ A for sure diagnosis is determined by karyographing a male's DNA. If the presence of a second X chromosome (making 47 total chromosomes) is found, then the patient is diagnosed with Klinefelter syndrome. However, some males can carry the extra Y chromosome and not display any of the symptoms.Because of this, patients who are identified as having an extra Y chromosome are first deemed to have an "XYY condition". Only once they are deemed of having symptoms do male patients officially become carriers of Klinefelter syndrome.

To see a picture of a Klinefelter karyotype, click on the following link and see picture 2.

Karyotype Image