American Association for Klinefelter Syndrome Information and Support (AAKSIS)
Email list, conference, membership, newsletter, regional groups and resource links.
Genetic Org Home
Information about Klinefelter Syndrome, when it was first discovered, the common characteristics, and treatment.
Overview and medical information.
Klinefelter Syndrome Support
Educational and support information about Klinefelter Syndrome/XXY and its variants.
Klinefelter's Syndrome gynecomastia
Male chest recontouring for large male breasts (gynecomastia) found in Klinefelter's Syndrome with surgical reduction by excision and liposuction. Before and after photographs, links, movies, and patient question and answer boards.
MedlinePlus Medical Encyclopedia: Klinefelter Syndrome
Defines this condition, the causes, symptoms, treatment, prognosis, and complications.
XXY is a genetic anomaly which occurs 1 in 500 in the general population today. Men with this condition usually have Klinefelters Syndrome. Offers joining instructions for this support group.