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A 47-year-old member asked:

can you tell me about klinefelter syndrome?

1 doctor answer1 doctor weighed in
Dr. James Ferguson
Pediatrics 46 years experience
Extra chromosome: Klinefelter syndrome occurs when a male is born with an extra sex chromosome.Their pattern is XXY instead of the normal xy. The defect results in decline in testosterone production with age and a loss of fertility in adulthood.

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A 35-year-old member asked:

Is XXY klinefelter's syndrome related at all to marfan's syndrome?

2 doctor answers10 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
No: Klinefelter syndrome is a group of features seen in some males with an extra x chromosome (they are xxy). A klinefelter syndrome male tends to be taller than expected compared to his father and brothers. Klinefelter syndrome is not related to Marfan syndrome.
A 53-year-old member asked:

Can a man with kleinfelter's do anything to fix their genome?

2 doctor answers6 doctors weighed in
Dr. Ankush Bansal
Internal Medicine 17 years experience
No: This is a genetic abnormality, actually a chromosomal abnormality. No treatment exists yet for fixing it. But some of the effects of klinefelter's can be managed.
A 47-year-old member asked:

What is the genetic reason for causing kleinfelter's?

2 doctor answers3 doctors weighed in
Dr. Golder Wilson
Specializes in Clinical Genetics
Extra X in men: Klinefelter syndrome is usually caused by an extra x chromosome in males, changing their normal 46, xy chromosome constitution to 47, xxy. The extra x causes tall stature with an asthenic build, underdevelopment of the testis and infertility. Sometimes there is more than one x, like 48, xxxy, often causing intellectual disability. The extra chromosome is a chance occurrence.
A 42-year-old member asked:

What is the basic cause of klinefelter syndrome?

2 doctor answers3 doctors weighed in
Dr. Gurmukh Singh
Pathology 49 years experience
Extra X chromosome: The phenotypic male, with a y chromosome, has more than on x chromosome, associated with poor testicular development, infertility and obesity.
Reading, PA
A 24-year-old male asked:

Can FSH levels tell me if I have either kallman's syndrome or klinefelter's?

2 doctor answers4 doctors weighed in
Dr. Donald McCarren
Neurology 36 years experience
It is a start: Kallmann syndrome is a disorder which results in the failure to start or complete puberty. It is shown by hypogonadism (low lcirculating sex related hormones) and by reduced or lack of smell . Klinefelter's syndrome is a disorder in which there is at least one extra x chromosome causing hypogonadism and reduced fertility. The w/u includes fsh, lh, testosterone and genetics. Please see endo.

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Last updated Sep 9, 2018

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