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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:

Recommended Related to Psoriasis

Summer Tips for Psoriasis

Warm weather often spells relief from psoriasis. Sunlight helps reduce skin patches, and higher humidity improves dry skin. Yet spring and summer can also make you anxious about showing so much bare skin. Use these tips to make the most of balmy days when you have psoriasis.  

Read the Summer Tips for Psoriasis article > >

  • 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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