Clostridium difficile Infection | Diagnosis & Tests

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How is C. diff. diagnosed?

Tests of stool samples can determine if you have C. diff. Sometimes, follow-up tests are needed to confirm the diagnosis. In certain scenarios, your doctor may do an X-ray or computerized tomography (CT) scan of your colon.

You may test positive for C. diff. without having any symptoms. This is known as C. diff. colonization. Some people are carriers for C. diff. but do not have C. diff. infection. A positive test result plus symptoms indicate that you have an active C. diff. infection.

Written by familydoctor.org editorial staff

Reviewed/Updated: 04/14
Created: 08/09

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