There are no tests available that are specific for relapsing polychondritis (RP). A diagnosis is, therefore, generally based on the presence of characteristic signs and symptoms. For example, people may be diagnosed as having RP if they have three or more of the following features:[9]
Inflammation of the cartilage of both ears
Seronegative (negative for rheumatoid factor) polyarthritis (arthritis that involves 5 or more joints simultaneously)
Inflammation of the cartilage of the nose
Eye inflammation (conjunctivitis, episcleritis, scleritis, and/or uveitis)
Inflammation of the cartilage of the airway
Vestibular dysfunction (i.e. vertigo, hearing loss, tinnitus)
In some cases, a biopsy of affected tissue may be necessary to support the diagnosis.[9]