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Doctor insights on: Klinefelters Syndrome In Children

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Is 46xxy klinefelter's syndrome?

Is 46xxy klinefelter's syndrome?

Yes: Presence of more than one x chromosome with one y chromosome is klinefelter syndrome. Read more

Dr. Ilene Fennoy
121 Doctors shared insights

Klinefelter's Syndrome (Definition)

Is a genetic disorder that affects males. Klinefelter syndrome occurs when a boy is born with one or more extra X chromosomes. Most males have one Y and one X chromosome. Having extra X chromosomes can cause a male to have some physical ...Read more


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What is klinefelters syndrome like?

Males with 47 XXY: Klinefelter's syndrome is a genetic disorder in which there is at least one extra x chromosome to a normal human male karyotype, for a total of 47 chromosomes.
The principal effects are hypogonadism and reduced fertility. By adulthood, XXY males look similar to males without the condition, although they are often taller. Gynecomastia (enlarged breats) is present in about a third of individuals. Read more

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How to know if I have klinefelters syndrome?

How to know if I have klinefelters syndrome?

See your PCP: Your pcp can order the specific genetic blood test that can confirm or exclude the issue. If you are not and are concerned about specific issues, your pcp will know what local sources are available to sort them out. Read more

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What are the tests for klinefelter's syndrome?

What are the tests for klinefelter's syndrome?

Chromosome analysis: A basic chromosome test on blood is the most definitive study. Humans have 23 pairs of chromosomes, one derived from each parent. Klinefelter patients have an extra female X chromosome giving them 47 chromosomes in every cell instead of 46. Read more

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How to tell if I have klinefelter's syndrome.?

How to tell if I have klinefelter's syndrome.?

Genetic testing: Suspect it if you're an older teen or young adult and you're not having the same very powerful erections / ejaculations as most of your friends, or if you have a fair amount of tissue under your nipples, or have found you are not able to make sperms because of infertility. Klinefelter men tend to be tall and gentle but the only way to be sure is to get labs. And it may not be worthwhile -- no Rx. Read more

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What are the symptoms of klinefelters syndrome?

What are the symptoms of klinefelters syndrome?

XXY male: The most common symptom is infertility. Because they often don't make as much of the male hormone testosterone as other boys, teenagers with klinefelter's syndrome may have less facial and body hair and may be less muscular than other boys. Read more

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What are the symptoms of klinefelter's syndrome?

Klinefelter: Symptoms of klinefelt syndrome in men may include infertility, decreased libido, small genitalia, gynecomastia, weak bones, minimal body & facial hair as well at tall height. Read more

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What are the symptoms of klinefelter's syndrome?

What are the symptoms of klinefelter's syndrome?

Not obvious: Many men who have klinefelter syndrome do not have obvious symptoms. Others have sparse body hair, enlarged breasts, and wide hips. In almost all men the testicles remain small. In some men the penis does not reach adult size. Their voices may not be as deep. They usually cannot father children. But they can have a normal sex life. This is from webmd if you want more info. Read more

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Please tell me what causes klinefelter's syndrome?

Klinefelter's: A boy is born with an extra copy of the x chromosome. This is what causes it. Read more

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How should I know if I have klinefelter's syndrome?

How should I know if I have klinefelter's syndrome?

Chromosomal analysis: Klinefelter's syndrome is strictly seen in males. It is a genetic disorder in which there is at least one extra x chromosome to a normal human male karyotype, for a total of 47 chromosomes rather than the 46 found in genetically normal humans.
The only reliable method of identification is chromosomal analysis. I hope this helps and good luck. Read more

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What is klinefelters syndrome? How is it treated nowadays?

47 XXY SYNDROME: It is a genetic disorder in which there is an extrax chromosome for a total of 47 chromosomes, and happens in 1in500to1in1000live male births
it causes hypogonadism (decrease testosterone), less muscular body, less facial and body hair, broader hips and teenagers10% have gynecomastia (large breasts), weaker bones and low energy
the genetic variation is not reversible. With ivf technology10%successful preg. Read more

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What biological sex is determined in klinefelters syndrome?

What biological sex is determined in klinefelters syndrome?

Male.: Klinefelter's syndrome is a male xx/y individual. In otherwords, an y-chromosomal male with two female chromosomes. Other than having after puberty very high estrogen levels and lower than normal testosterone, they actually have the highest incidence of connective tissue diseases in the lupus family, but the percentage still is not high! Read more

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What is the definition or description of: Klinefelter's syndrome?

What is the definition or description of: Klinefelter's syndrome?

Klinefelter Syndrome: Is a genetic disorder that affects males. Klinefelter syndrome occurs when a boy is born with one or more extra X chromosomes. Most males have one Y and one X chromosome. Having extra X chromosomes can cause a male to have some physical traits unusual for males. Read more

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Can you please tell me how klinefelters and turners syndrome differ?

The chromosomes: The klinefelter has a pattern of the sex chromosomes as XXY (with male features) while the turners is xo (with female features). Read more

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Is klinefelter's syndrome a disease more common among certain ethnicities?

Is klinefelter's syndrome a disease more common among certain ethnicities?

Klinefelter syndrome: This disorder affects all races and ethnicies equally. Thanks for trusting HealthTap! Read more

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I have klinefelter's syndrome, can I be a dad?

Possibly: Requires help from a suitable fertility clinic. Men with klinfelter's and a normal serum testosterone (st) have a high rate of successful sperm extraction by testicular microdissection. Some men with lower st may respond to HCG stimulation to elevate st and have reasonable sperm retrieval. Then successful invitro fertilization or intracytoplasmic sperm injection techniques are required for success. Read more

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Is klinefelter's syndrome dominent or recessive?

Is klinefelter's syndrome dominent or recessive?

Error in formation: Humans have 23 pairs of chromosomes. During the formation of the egg, each pair splits and one of each travels to the egg. At conception, the sperm brings 22 + an X or Y & the new embryo now has 23 pairs (two of each). In Kleinfelter, the egg retains 2 X chromosomes instead of 1 & the sperm brings a Y.The fetus then has 23 pairs + the extra X. This is an error in formation, not an inherited trait Read more

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Docs, could a man with klinefelters syndrome still reproduce?

Docs, could a man with klinefelters syndrome still reproduce?

Sadly, no.: See http://www. Klinefeltersyndrome. Org for information on associated medical & developmental problems. KS is usually caused by an extra X Chromosome in each cell of the body (47, XXY), although variants exist. Extra copies of genes on the X Chromosome interfere with male sexual development, prevent the testes from functioning normally, reduce testosterone levels & cause infertility. Read more

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Are people with klinefelters syndrome still able to procreate?

Usually Infertile: True klinefelter's patients are usually infertile, but some have a reduced to severely reduced fertility. In those individuals, advanced reproductive assistance may help.
Some "klinefelter" patients are diagnosed solely on appearance, when in fact, they are not true klinefelter's. Their fertility may not be affected. If there is any doubt, check it out. Read more

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