Psoriatic arthritis – Definition, Risk factors, and Treatment.

What is psoriatic arthritis? Psoriatic arthritis (PsA) is a painful joint condition that complicates the relapsing chronic skin disease psoriasis. It is considered to be an inflammatory joint disorder and is classified as part of the seronegative spondylarthropathies. PsA affects between 5% and 25% of people with psoriasis. It is …

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