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What is the link between psoriasis and psoriatic arthritis?

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Not everyone who has psoriasis will get psoriatic arthritis, even though the conditions are often related. Psoriasis causes patches of scaly, red, or white skin called plaques. Psoriatic arthritis sets off joint swelling and pain that can lead to permanent damage. Your immune system is responsible for both. Inflammation is part of both psoriasis and psoriatic arthritis. Both of these conditions occur because your immune system attacks your own body instead of something foreign to you.

SOURCES:

American College of Rheumatology: "Psoriatic arthritis."

National Psoriasis Foundation: "Psoriatic arthritis."

Philip Mease, MD, Seattle Rheumatology Associates.

John Hardin, MD, chief scientific officer, Arthritis Foundation; professor of medicine, Albert Einstein College of Medicine, New York City.

Arthritis Foundation: "Psoriatic arthritis."

Mark Lebwohl, MD, professor and chairman of dermatology, Mount Sinai School of Medicine.

The Johns Hopkins Arthritis Center: "Psoriatic arthritis," "New Onset Psoriatic Arthritis Reported in Psoriasis Patients Treated with Efalizumab."

Viguier, M.   , May 2008. Arthritis Rheum

Reviewed by David Zelman on May 5, 2017

SOURCES:

American College of Rheumatology: "Psoriatic arthritis."

National Psoriasis Foundation: "Psoriatic arthritis."

Philip Mease, MD, Seattle Rheumatology Associates.

John Hardin, MD, chief scientific officer, Arthritis Foundation; professor of medicine, Albert Einstein College of Medicine, New York City.

Arthritis Foundation: "Psoriatic arthritis."

Mark Lebwohl, MD, professor and chairman of dermatology, Mount Sinai School of Medicine.

The Johns Hopkins Arthritis Center: "Psoriatic arthritis," "New Onset Psoriatic Arthritis Reported in Psoriasis Patients Treated with Efalizumab."

Viguier, M.   , May 2008. Arthritis Rheum

Reviewed by David Zelman on May 5, 2017

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How can you get psoriatic arthritis from psoriasis?

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