Psoriasis - Prognosis

Complications of Psoriatic Arthritis

Most cases of psoriatic arthritis (PsA) are mild, but complications can occur:

• Severe joint deformity and destruction (called arthritis mutilans), generally in the small joints of the hands and feet, may develop. Studies report an incidence of about 5 - 16% of patients. Psoriasis patients with other arthritic conditions (osteoarthritis or rheumatoid arthritis) in the joints of the fingers tend to have a higher risk.
• People with PsA may have a higher risk for respiratory illnesses.

Some earlier studies indicated that patients with psoriatic arthritis had a shorter lifespan than the general population, but more recent ones have found no significant difference.

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