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Klinefelter's Syndrome

What is Klinefelter syndrome (KS)?

Klinefelter syndrome (KS) is a genetic condition that happens when a male is born with an extra copy of the X chromosome. KS can affect different stages of physical, language, and social development. It also usually causes infertility.

What causes Klinefelter syndrome (KS)?

KS is not inherited. It's caused by a random error that happens when a sperm or egg is formed. This error causes a male to be born with an extra X chromosome.

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Results 1 - 10 of 298 for Klinefelter syndrome
  1. Klinefelter Syndrome (National Library of Medicine)  
    What is Klinefelter syndrome (KS)? Klinefelter syndrome (KS) is a genetic condition that happens when a male is born with an extra copy of the X chromosome. KS ...
  2. Klinefelter syndrome, also called 47,XXY, is a chromosomal condition that affects development in people who are assigned male at birth. The signs and symptoms of ...
  3. Klinefelter syndrome, also called 47,XXY, is a genetic condition that occurs in males when they have an ... and has 1 X and 1 Y chromosome . Klinefelter syndrome results when a male child is born with ...
  4. Klinefelter Syndrome (For Teens) (Nemours Foundation)  
    Nemours Foundation ... Klinefelter Syndrome/Learn More ... Klinefelter Syndrome ... kleinfelter, klinefelter's kleinfelter's, xxy, penis, dick, testicles, testes, small, ...
  5. About Klinefelter Syndrome From the National Institutes of Health (National Human Genome Research Institute)  
    National Human Genome Research Institute ... From the National Institutes of Health ... Male Infertility/Genetics ... Male Infertility ... Klinefelter Syndrome/Learn More ...
  6. Other Klinefelter Syndrome (KS) FAQs From the National Institutes of Health (Eunice Kennedy Shriver National Institute of Child Health and Human Development)  
    Find answers to other common questions about Klinefelter syndrome, such as what other conditions are associated with KS and how KS affects fertility.
  7. What Are Common Symptoms of Klinefelter Syndrome (KS)? From the National Institutes of Health (Eunice Kennedy Shriver National Institute of Child Health and Human Development)  
    Many factors can affect whether a person with Klinefelter syndrome has no, mild, or severe symptoms.
  8. About Klinefelter Syndrome From the National Institutes of Health (Eunice Kennedy Shriver National Institute of Child Health and Human Development)  
    Klinefelter syndrome describes a set of features that can occur in a male who is born with an ...
  9. What Are the Treatments for Symptoms in Klinefelter Syndrome (KS)? From the National Institutes of Health (Eunice Kennedy Shriver National Institute of Child Health and Human Development)  
    Eunice Kennedy Shriver National Institute of Child Health and Human Development ... From the National Institutes of Health ... Klinefelter Syndrome/Learn More ... Klinefelter ...
  10. How Do Health Care Providers Diagnose Klinefelter Syndrome (KS)? From the National Institutes of Health (Eunice Kennedy Shriver National Institute of Child Health and Human Development)  
    Eunice Kennedy Shriver National Institute of Child Health and Human Development ... From the National Institutes of Health ... Klinefelter Syndrome/Learn More ... Klinefelter ...
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