MSD Manual

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Professional Version

Polyarthritis in Dogs and Cats

By

Joseph Harari

, MS, DVM, DACVS, Veterinary Surgical Specialists, Spokane, WA

Medically Reviewed Nov 2020 | Modified Oct 2022

Clinical signs of a polyarthritis include fever, lameness, swollen joints, lethargy, and inappetence.

Treatments involve longterm glucocorticoid therapy or other immunosuppressive medications such as azathioprine or cyclophosphamide.

Prognosis in most cases is guarded or poor, with relapses common.

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