Question: What is Klinefelter Syndrome?

Answer: Klinefelter Syndrome is a disease where an individual has two X chromosomes and one Y chromosome. An individual that has Klinefelter syndrome will often have characteristics that are both male and female.

Question: How does a person get the disease (the genetics of it, including what chromosome the mutation occurs on)?

Answer: A person gets Klinefelter syndrome by nondisjunction. A pair of sex chromosomes fails to separate during egg or sperm formation. When an egg or sperm with an extra X chromosome joins with a normal sperm or egg, the resulting person will end up with three sex chromosomes instead of the normal two.

Question: What are the symptoms of the disease?

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Question: How is the disease diagnosed?

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Question: How is the disease treated?

Answer: Klinefelter syndrome is treated by giving teens and adults hormones. Testosterone will help to develop more male characteristics and estrogen will help to develop more female characteristics. Individuals with Klinefelter syndrome can also choose to remove breast tissue.