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Klinefelter's Syndrome

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Klinefelter's Syndrome - Causes

Klinefelter’s Syndrome occurs as the result of an error during the formation of an egg or a sperm that results in a person having a XXY combination or 47 chromosomes instead of the normal 46.


A normal person has a total of 46 chromosomes in each cell. Two of these chromosomes are called X and Y and these are responsible for the sex of a person. Females have two X chromosomes – 46, XX, and males have one X and one Y chromosome –46, XY.

Klinefelter’s Syndrome is caused by the presence of an additional X chromosome. This error usually occurs when the chromosomes are distributed during the division of the egg or the sperm. In more than half of the cases, the extra X chromosome is contributed by the father. Very little is known about the role of the mother’s age in bringing about this condition.

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I have Mosaic KS. My 1 year old daughter is genetically mine and was conceived naturally. Miracles do happen guys, keep faith.
Dgrizzle Wednesday, March 13, 2013
10n God that is hope. but where u taking testosterone before u had ur daughter
1989zz Saturday, September 07, 2013
Sorry, but this is a question rather than a comment. Can a person have their genetic profile tested to see if they may produce a child with klienfelters syndrome?
Graham.W Wednesday, January 02, 2013
Hello have you been told you have KS [Klinefelters symdrome]and are you on the hormone injections yet , once you start the course of injections, which i have every 3 months for life , this means you wont be able to have children , due to the treatment kills the sperm , im 42 now and cant have children . but miricals do happen so my doctor tells me . hope this is of some interest Carl
Carl42withKS Saturday, February 23, 2013
I have only recently learned of KS. I have a 17 y/o son who exhibits many of the physical characteristics. Please help me if you know of a specialist in the Houston area who can assist.
LastToKnow Tuesday, June 26, 2012
hy im digvijay singh from Rajasthan, INDIA. im 22 ye old ,i have just recently noticed that i m having some kind of breast development and my body is shaping into likely to girls ,im a student of b.tech, i want to make my life but this is giving me trouble,, what should i do and where should i go .. to avoid these symptoms.
djay Wednesday, May 30, 2012
dude did u get solution for this? i'm also suffering from the same plz help me too
sagar4006 Monday, June 25, 2012
hy im maynk sharma from INDIA. im 21 ye old ,i have just recently noticed that i m having some kind of breast development and my body is shaping into likely to girls ,im a student of msc, i want to make my life but this is giving me trouble,, what should i do and where should i go .. to avoid these symptoms.
mayankoo Monday, May 07, 2012
As a Klinefelter-adult [prognose when I was 53] I use now every 12 weeks a Testosteron injection of 'Nebido' from Bayer Pharma Germany in Europe. It's 1 ampule is 4ml liquid, 4ml is 1000mg Testosteron-undecanoat. I'm bedridden with CRPS (feet), AD(H)D, Esophagus Spasmes (Areopagus)..... And I cannot fall asleep, I sleep maybe 10-14 hours a week, the rest of the week I'm awake. So all other medication was nothing in bed. With the 'Sustanon'-injections (1ml=250mg) I had too many ups and downs and only on the highest level (in a period) I had a well feeling but that was for me too short. The 'Nebido' injections give me a steady/balanced feeling and is for me okay. The price for 3 ampules is: €562,74. I hope ypu can read my school/holiday-English well. From the Netherlands I say hello. Below each written message I write this signature: ~I'm open, honest and sincere to myself and to others....! ~
Eglefino Monday, October 17, 2011
I am looking for a clinical psychologist who deals with KS adolescence in central Illinois...If you know of a GOOD one please contact me at jnacke@consolidatednet. thank you!
jnacke Wednesday, July 27, 2011
I Mahendra Sinha my penis is small main jab exaited hota hun to mere whit watr nikal aata hai main 5to 10 minut main hi down hojata hun meri marrige ke 4year o gaye hain mere koi santan nahin hai maine apna sperm chek karvayo you sukranu nil hain mujhe koi sahi treatment batain
mahi123 Friday, March 25, 2011
I dont know if this will help anyone or maybe it will make me feel better. i had testicular cancer 10 years ago. found out that I have KS, have been taking medicine to help testosterone for sevral years. some side effects. i tend to get angry, short fuse,and can be a threat to others. but i have learned to deal with this. hopefully iam not the only one who feels like a genectic outcast.
brad51 Monday, February 14, 2011
4rm draktt- I think i have KS. The phenotype matches: small testes, gynecomastia, muscular dystrophy,.Though i'm very hairy and have an above average IQ. I want to know if testosterone therapy will benefit me cos i'm in my mid-twenties. And if yes, if it will improve my guy-mastia.
draktt Monday, December 13, 2010
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