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Diseases

Genetic and Rare Diseases Information Center (GARD)

Prader-Willi syndrome


Other Names for this Disease
  • PWS
  • Willi-Prader syndrome
  • Prader-Labhart-Willi syndrome
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Your Question

My foster child will be tested for Prader-Willi syndrome, but has a very high IQ. Is it possible for people with Prader-Willi to have high IQs?  

Our Answer

We have identified the following information that we hope you find helpful. If you still have questions, please contact us.

Is it possible for people with Prader-Willi syndrome to have high IQs?

Most people with Prader-Willi syndrome (PWS) have mild to moderate intellectual impairment and learning disabilities.[1] [2] One study found that people with PWS have a range of IQs with an overall average IQ of 60, which is 40 points lower than in the general population.[3] Some people with PWS have an IQ that is within the average range; there have been reports of affected people with IQs of 103 and 105.[4] However, even with an IQ in the average range, a person with PWS may have a lack of understanding for abstract concepts, and may still experience difficulty relating to peers.[4][5]  We were not able to find any published case reports or studies, however, reporting a person with PWS in the above average range. 
Last updated: 7/7/2016

References
Other Names for this Disease
  • PWS
  • Willi-Prader syndrome
  • Prader-Labhart-Willi syndrome
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.