Reactive Arthritis - Reiter's Syndrome

How is the condition diagnosed?

Reiter's syndrome may be suspected when someone develops arthritis following an infection. The organism may be cultured from the throat, intestinal tract, or genitourinary tract. Blood tests can help confirm the diagnosis. In some cases, a joint aspiration is done to remove fluid from the joints by a needle. The fluid is then examined under a microscope in the laboratory.