12 doctors weighed in:

What is the procedure to test for kleinfelter's?

12 doctors weighed in
Dr. Ira Salafsky
Clinical Genetics
7 doctors agree

In brief: Chromosomal analysis

Kleinfelter syndrome is caused by an extra x chromosome in males (47, xxy).
It can be suspected on physical exam because of several somatic features including small testis in post pubertal males. Definitive diagnosis requires chromosomal analysis.

In brief: Chromosomal analysis

Kleinfelter syndrome is caused by an extra x chromosome in males (47, xxy).
It can be suspected on physical exam because of several somatic features including small testis in post pubertal males. Definitive diagnosis requires chromosomal analysis.
Dr. Ira Salafsky
Dr. Ira Salafsky
Thank
Dr. Soumya Adhikari
Pediatrics - Endocrinology
3 doctors agree

In brief: Genetic testing

Although you may have low testosterone levels or elevated levels of LH and/or FSH (which are the signals from your pituitary gland which stimulate testosterone production) the most accurate test is a karyotype, which will usually show a 47,XXY pattern, which means you have two X chromosomes and one Y chromosome, if you have Klinefelter's.

In brief: Genetic testing

Although you may have low testosterone levels or elevated levels of LH and/or FSH (which are the signals from your pituitary gland which stimulate testosterone production) the most accurate test is a karyotype, which will usually show a 47,XXY pattern, which means you have two X chromosomes and one Y chromosome, if you have Klinefelter's.
Dr. Soumya Adhikari
Dr. Soumya Adhikari
Thank
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