Psoriatic arthritis is a long-term condition that causes pain and swelling in the joints. Overtime it can cause be damaging to the joints and cause disability. It is associated with a skin condition called psoriasis, but not everyone that has psoriasis will develop psoriatic arthritis.

Psoriatic arthritis is an autoimmune disease which means the body attacks its own healthy tissue.

Psoriasis
Psoriasis
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The exact cause of psoriatic arthritis is not known. It may be due to a combination of genetics and environmental triggers.