Klinefelter's Syndrome

Other Names :  

47,XXY, XXY

What is Klinefelter's Syndrome ?  

Klinefelter's Syndrome is the most frequent sex chromosomal genetic disorder and is caused by the presence of an extra X chromosome.

A set of symptoms result due to the presence of at least one extra X chromosome to a standard human male karyotype. The resulting combination is XXY. Since the individual has at least one Y chromosome, they are genetically considered to be male.


Cause(s) :  Genetics.

Symptoms :  Physical traits associated with the syndrome normally manifest after the onset of puberty.

• Hypogonadism (diminished function of reproductive organs)
• Sterility
• Less muscular body and less facial and body hair
• Developed breast tissue
• Weaker bones
• Lower energy levels than other males
• Language learning or reading impairmnet

Diagnosis and Tests :  

• Buccal Smear
• Karyotype

Specialist to consult :  Pediatrics

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