Mendenhall,  PA 
United States
  • Booth: 109

AXYS welcomes all inquiries!


The Association for X and Y Variations (AXYS) is an advocacy, education and support organization for individuals with X and Y chromosome variations and their families. The mission of AXYS is to help individuals with one or more extra X and/or Y chromosomes and their families to lead fuller, more productive lives. AXYS fulfills this mission by improving the lives of those impacted by the X and Y chromosome aneuploidies including Klinefelter syndrome (47,XXY), Trisomy X (47,XXX), 47,XYY Syndrome, 48,XXYY, and related genetic conditions through: Support geared to the needs of individuals, their families, and the professionals who serve them Education that provides current, scientifically accurate information to our constituents and to the public Promoting research that advances knowledge of the field Improving treatment options and access for those affected by the conditions AXYS celebrates the diversity of the human family, including sex and gender, skin color, ethnicity, religion, sexual orientation, gender identity, age, socioeconomic status, physical characteristics and mental abilities.

 Press Releases

  • AXYS announces the 2019 AXYS Family Conference in Atlanta June 20-30, 2019

    The latest information on X and Y chromosome variations to be presented by researchers from Children’s Hospital of Colorado, Children’s Hospital of Philadelphia, Emory University, Johns Hopkins, The National Institutes of Health, and Stanford University.

    Mendenhall PA. March 29, 2019-The Association for X and Y Chromosome Variations (AXYS), dedicated to addressing the needs of those affected by one or more extra X and/or Y chromosomes, announces the 2019 AXYS Family Conference. This event furthers our mission by bringing together nearly 300 attendees and presenters from the X and Y variation community.

    The 2019 AXYS Family Conference will be held at Emory University in Atlanta from June 28-30, 2019.  This event brings children and adults with these chromosome variations, their families and caregivers together with advocates, community organizations, parent group leaders, clinical and research professionals including genetic counselors, geneticists, and endocrinologists.

    X and Y chromosome variations occur in 1:500 people. They are common genetic conditions, but often go undiagnosed. The most common variations involve a trisomy, which means three sex chromosomes instead of the typical two. This includes 47, XXY (Klinefelter syndrome), 47, XYY, (Jacobs syndrome) and 47, XXX (Trisomy X). In addition, there are a number of other X and/or Y conditions where the person has 48 or 49 chromosomes. These include 48, XXYY, (XXYY syndrome), 48, XXXY, 48, XXXX, (Tetrasomy X) and 48, XYYY; also 49, XXXXY, 49, XXXXX, (Pentasomy X), 49, XXXYY, 49, XXYYY and 49, XYYYY. Some individuals may have two cell lines, which is called mosaicism, such as 46, XY/47, XXY.

    The conference agenda brings the latest scientific and practical information to families living with X and Y variations presented by the top researchers and clinicians in the field.  Sessions include: Man to Man: Understanding XXY from a Father’s perspective with David Hong, MD and Social Skill Challenges, Toddlers to Teens with Rebecca Wilson, PsyD.

    It is not too late to register for the conference.  A few sponsorship opportunities remain also. See the full conference agenda and register at

    About AXYS
    The Association for X and Y Chromosome Variations (AXYS), a 501(c)(3) non-profit, is dedicated to addressing the needs of those affected by one or more extra X and/or Y chromosomes. We are focused on sharing knowledge, offering support, promoting research, and improving treatment options to help improve lives of the estimated 1 in 500 individuals born with these chromosome differences as well as their families. Read more about our organization, mission and accomplishments at

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    Media Contact: Carol Meerschaert
    AXYS Executive Director