False positive results on HIV tests

A false HIV positive is a test result that says you have HIV when, in fact, you do not have it. 

Because it is annoying and confusing to receive a false HIV positive result, more test needs to be redone to verify the results

The main cause for false HIV positive results is when the test detects antibodies which are not for HIV but for other infections or substances. An antibody is a protective protein produced by the immune system in response to the presence of a foreign substance.