• Klinefelter Syndrome Symptoms, Causes, and Treatment

    www.webmd.com/men/tc/klinefelter-syndrome-topic-overview What is Klinefelter syndrome? Klinefelter syndrome is a genetic disorder that affects males. Klinefelter syndrome occurs when a boy is born with one or more extra X ...
  • Klinefelter syndrome - Mayo Clinic

    www.mayoclinic.org/diseases-conditions/klinefelter-syndrome/.../CON-20033637 Klinefelter syndrome is a genetic condition that results when a boy is born with an extra copy of the X chromosome. Klinefelter syndrome is a common genetic condition ...
  • Klinefelter Syndrome (Genetics Home Reference)

    ghr.nlm.nih.gov/condition/klinefelter-syndrome Klinefelter syndrome is a chromosomal condition that affects male physical and cognitive development. Its signs and symptoms vary among affected individuals.
    • Klinefelter Syndrome: Here Are the Symptoms - MedicineNet

      www.medicinenet.com/klinefelter_syndrome/article.htm Klinefelter syndrome, also known as the XXY condition, is a term used to describe males who have an extra X chromosome in most of their cells.
    • Klinefelter syndrome - Wikipedia, the free encyclopedia

      en.wikipedia.org/wiki/Klinefelter_syndrome Klinefelter syndrome or Klinefelter's syndrome (KS) (/ ˈ k l aɪ n f ɛ l t ər /) also known as 47,XXY or XXY, is the set of symptoms that result from two or more X ...
    • Klinefelter Syndrome - KidsHealth

      kidshealth.org/teen/diseases_conditions/genetic/klinefelter.html Signs. Differences in boys with Klinefelter syndrome can range from mild to severe. Some guys have few or no obvious signs. Other times, Klinefelter syndrome ...
    • Klinefelter Syndrome Support Group website

      www.klinefeltersyndrome.org Educational and support information about Klinefelter Syndrome/XXY and its variants.
    • Learning About Klinefelter Syndrome - Genome.gov

      www.genome.gov/19519068 Learning About Klinefelter Syndrome. What is Klinefelter syndrome? What are the symptoms of Klinefelter syndrome? How is Klinefelter syndrome diagnosed?
    • Klinefelter syndrome Symptoms - Mayo Clinic

      www.mayoclinic.org/diseases-conditions/klinefelter-syndrome/.../CON-20033637 Many boys with Klinefelter syndrome have few noticeable symptoms, and the condition may go undiagnosed until adulthood. For others, the condition has a noticeable ...
    • Klinefelter Syndrome (KS): Overview

      www.nichd.nih.gov/health/topics/klinefelter/Pages/default.aspx KS describes a set of physical, language, and social development symptoms in males who have an extra X chromosome. Its main feature is infertility.