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Conditions
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Chromosomal disorders
Klinefelter's syndrome

Klinefelter's syndrome

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Klinefelter's syndrome is a genetic condition in which males have an extra X chromosome. Individuals with Klinefelter's may be infertile, lack secondary sex characteristics, and have learning disabilities.

Dr. Kat Kat reviewed this

33 years experience

Is a type of:

Chromosomal disorders

How long it usually lasts:

Chronic (lasts years to lifelong)

How common it is:

Rare

Symptoms

Delayed language skills
Abnormally small penis
Very late puberty
Tall stature
Loss of speech
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Medications

Ratings show how effective doctors think these medications are at treating Klinefelter's syndrome
Testosterone
5
1 review

Other treatments

Speech therapy

Tests

Speech and language evaluation
Complete semen analysis
FSH
Free and total testosterone
Karyotyping

Related questions

A 40-year old asked:

Is 46XXY Klinefelter's syndrome?

1 doctor answer • 2 doctors weighed in

A 41-year old asked:

What are the symptoms of klinefelters syndrome?

1 doctor answer • 2 doctors weighed in

A 42-year old asked:

Please tell me what causes klinefelter's syndrome?

1 doctor answer • 1 doctor weighed in

A 47-year old asked:

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

1 doctor answer • 1 doctor weighed in

A 38-year old asked:

What is Klinefelters syndrome? How is it treated nowadays?

1 doctor answer • 1 doctor weighed in

A 43-year old asked:

What biological sex is determined in klinefelters syndrome?

1 doctor answer • 2 doctors weighed in

A 16-year old female asked:

Is klinefelter's syndrome dominent or recessive?

2 doctor answers • 2 doctors weighed in

A 29-year old asked:

Are people with klinefelters syndrome still able to procreate?

1 doctor answer • 4 doctors weighed in

A 25-year old asked:

Are all diagnostic tests for Klinefelter's syndrome done locally? What are they?

2 doctor answers • 8 doctors weighed in

A 47-year old asked:

Can you tell me if my child has klinefelter's syndrome should I have an amniocentesis?

1 doctor answer • 1 doctor weighed in

A 49-year old asked:

I think i have klinefelter syndrome. Help?

2 doctor answers • 2 doctors weighed in

A 46-year old asked:

Why cant a woman get klinefelter syndrome?

2 doctor answers • 6 doctors weighed in

A 45-year old asked:

Does anyone know about klinefelter syndrome?

2 doctor answers • 2 doctors weighed in

A 41-year old asked:

How do I know if I have klinefelter syndrome?

2 doctor answers • 4 doctors weighed in

A 42-year old asked:

What is the basic cause of Klinefelter syndrome?

1 doctor answer • 2 doctors weighed in

A 39-year old asked:

Treating klinefelter syndrome at age 19. What is the best treatment?

1 doctor answer • 1 doctor weighed in

A 34-year old asked:

Should I see an endocrinologist for suspected klinefelters syndrome diagnosis?

1 doctor answer • 1 doctor weighed in

A 37-year old asked:

Is there high fsh in males with klinefelter's syndrome?

1 doctor answer • 9 doctors weighed in

A 35-year old asked:

Is xxy klinefelter's syndrome related at all to Marfan's syndrome?

2 doctor answers • 9 doctors weighed in

A 42-year old asked:

Do you know if xxy klinefelter's syndrome related to marfan's syndrome?

1 doctor answer • 2 doctors weighed in

A 45-year old asked:

I am 19 years of age male and have little gynecomastia. Could this be caused by klinefelter's syndrome?

1 doctor answer • 5 doctors weighed in

A 26-year old asked:

If you have Klinefelter's syndrome and you have one testicle that was undescended, but one that descended normally can you have kids?

1 doctor answer • 1 doctor weighed in

A 37-year old asked:

What type of genetic disorder is klinefelter syndrome classified as?

1 doctor answer • 1 doctor weighed in

A 24-year old male asked:

Can a man with klinefelters syndrome take anabolic steroids?

1 doctor answer • 1 doctor weighed in

A 39-year old asked:

Does a child have Klinefelter syndrome due to his own mutation or due to mutations his parents carry?

1 doctor answer • 6 doctors weighed in

A 35-year old asked:

How can i tell if I have delayed puberty or klinefelter syndrome?

2 doctor answers • 3 doctors weighed in

A female asked:

What is the treatment for low testosterone for a patient with klinefelters syndrome?

1 doctor answer • 2 doctors weighed in

A 28-year old female asked:

My husband was born with Klinefelter's Syndrome, and with only one testes.He doesn't produce enough sperm, do you think use of clomiphene will help?

2 doctor answers • 5 doctors weighed in

A 18-year old male asked:

I am 18 yo and getting tested for Klinefelter syndrome, if diagnosed can I expect full male genital developm., facial hair ect. considering my age?

3 doctor answers • 7 doctors weighed in

A 36-year old asked:

What are the symptoms of Klinefelter\'s syndrome?

1 doctor answer • 1 doctor weighed in

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