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A Look at Psoriasis Severity

Content provided by: Better Medicine from Healthgrades

More Common Than You Might Think

In the United States alone, about 7.5 million people have psoriasis. The most common type, which affects about 80% of people with the condition, is plaque psoriasis. Like rheumatoid arthritis and multiple sclerosis, psoriasis is an autoimmune disease that isn't well-understood.

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Medically Reviewed By: Jones, Niya, MD

Last Annual Review Date: 2012-08-16

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Did You Know?

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About 30% of psoriasis sufferers experience joint inflammation that produces symptoms of arthritis. This condition is called psoriatic arthritis.