Educational and support information about Klinefelter Syndrome/XXY and its variants.

A private discussion list for which you must be an XXY to subscribe.

Overview and medical information.

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.

A parent's point of view, with articles.

Email list, conference, membership, newsletter, regional groups and resource links.

Literature on XYY, Klinefelter, XXX, and Turner's Syndrome.

Medical information, news, and links.

David Brager's story, with information about Klinefelter's.

A chromosome abnormality that affects only men and causes hypogonadism.

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.

Specific health and educational resources for Ohio KS individuals and their families. Links to local and national healthcare, ongoing research, conferences, and support meetings.