The American Association for Klinefelter Syndrome Information & Support is a 501(c)(3) nonprofit organization

The American Association for Klinefelter Syndrome Information and Support (AAKSIS) is a national volunteer association with the mission of education, support, research, and understanding of 47 XXY and its variants, collectively known as Klinefelter syndrome.

AAKSIS is governed by a Board of Directors and is assisted by a Professional Advisory Board.

AAKSIS is dedicated to bringing you accurate and current information about Klinefelter Syndrome and is a network for individuals, families, and anyone interesting in learning more about Klinefelter Syndrome.

Klinefelter Syndrome, 47XXY, the most common of the sex chromosome variations, is said to occur in 1 out of 500 males. Statistics suggest that there are thousands of 47XXY individuals in the United States alone. Many remain undiagnosed.

Current and accurate information about 47,XXY required by those confronted with a new diagnosis is often unavailable.

 AAKSIS strives to raise awareness among medical professionals and the general public.  AAKSIS works with its professional advisors to present an annual educational program aimed at providing the latest information and research to its community and anyone interested in learning more about Klinefelter Syndrome..