Diagnosing septic arthritis

If your symptoms suggest septic arthritis, your GP will refer you to your nearest A&E department immediately for an assessment.

You may have a Blood tests and a sample of fluid may be removed from your affected joint with a needle. This isto look for signs of inflammation and infection, and to identify any bacteria.

If you have septic arthritis, there may be high numbers of white blood cellsin your blood and joint fluid, which is a sign of infection.

However, these tests come back normalin many cases of septic arthritis, so they can't be relied on entirely to rule out infection.

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Medically Reviewed by a doctor on 21 Dec 2018