Depends: How recent was your last examination? Do you have recurrent symptoms or just a fear that you might have something? Are others in your household suffering from some illness? And do you have a history of illness or a family history of problems? If the answer to these questions suggest that something might be there, then a retesting could be informative.
Answered 11/7/2013
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2 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
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