Our mission is to help individuals with one or more extra X and/or Y chromosomes and their families lead fuller and more productive lives.
How can we assist you?
Help With Prenatal Diagnosis
Tell Me About 47, XYY
AXYS Plans and Goals
Register Your Email Address
Klinefelter Syndrome Research
AXYS Family Conference: Aurora, CO, June 24-25, 2017
Fall 2016 Newsletter
American College of Medical Genetics updated position on Noninvasive Prenatal Screening
Trisomy X Research News
Advances in the Interdisciplinary Care of Children with Klinefelter Syndrome
Klinefelter syndrome: current management and research challenges
AXYS AXYON Registry: Help support research!
Books on X and Y Chromosome Variations from the eXtraordinarY Kids Clinic