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Psoriasis: Test Your Knowledge

Psoriasis affects up to 7.5 million Americans, according to the National Institutes of Health. Psoriasis is more common in adults than children and affects males and females equally.

Psoriasis affects:

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Psoriasis

Important It is possible that the main title of the report Psoriasis is not the name you expected.

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  • 2% to 3% of people throughout the world
  • About 2.2% of people in the United States
  • Some cultures more than others. Worldwide, psoriasis is most common in Scandinavia and other parts of northern Europe. It appears to be far less common among Asians and is rare in Native Americans, according to the American Academy of Dermatology.

WebMD Medical Reference

Reviewed by Norman Levine, MD on October 31, 2012

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