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Definition of Pseudogout
Medically reviewed by Min Clinic Staff | Updated: January 2026
Pseudogout: Inflammation of the joints that is caused by deposits of calcium pyrophosphate crystals, resulting in arthritis, most commonly of the knees, wrists, shoulders, hips, and ankles. Pseudogout usually affects only one or a few joints at a time. True gout is due to a different type of crystal, which is formed by the precipitation of uric acid.