Prader-Willi Syndrome (PWS)

Prader-Willi Syndrome (PWS)

Prader-Willi syndrome (PWS) is a non-inherited genetic disorder, which is most often associated with error or random deletion in the 15th chromosome. PWS may result in short stature, intellectual disability or learning disabilities, incomplete sexual development, characteristic behavior problems, and low muscle tone. People with Prader-Willi syndrome experience an involuntary urge to eat constantly, which, coupled with a reduced need for calories, often leads them to be obese.


The Prader-Willi Syndrome Association 

The Association has a newsletter and hosts an annual national conference.
8588 Potter Park Drive, Suite 500
Sarasota, Florida 34238
Phone: 800-926-4797

Prader-Willi Syndrome Association of New England (PWSA)

Gives support to parents with newly diagnosed children, and is a resource for other services
(therapists, physicians) for children and adults with Prader-Willi syndrome and their families.
Phone: 978-207-1185


Other Information:

People with Prader-Willi syndrome can accomplish many of the same things as people without the disability. They go to school, participate in community activities and hold jobs. Additional supports are frequently required to enable people with Prader-Willi syndrome to fully participate in the community.  Additional information may be available through genetic units at hospitals.

Tufts Medical Center Prader Willi Syndrome Clinic

MassGeneral Hospital for Children Genetics Program

Franciscan Children’s Hospital Clinical Services


Additional resources:

National Library of Medicine Genetics Home Reference Prader-Willi Syndrome

National Institutes of Health Prader-Willi Syndrome (PWS): Condition Information

Mayo Clinic Prader-Willi Syndrome Overview

Fact Sheet last updated on: 3/21/2023


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