Schaaf-Yang syndrome (SYS) is a rare genetic disorder caused by a disruption of the MAGEL2 gene. SYS affects males and females equally, as well as all races and ethnicities. It shares many clinical features with Prader-Willi syndrome.

Getting the facts is an important first step in showing support for people dealing with SYS. By downloading this one-page fact sheet, you'll get a quick overview of:

  • Common SYS symptoms, including hypotonia and autism spectrum disorder
  • Differences and similarities between SYS and PWS
  • Research into treatments that offer hope for the future
  • How you can help!

To get the fact sheet, just fill out the form.