Which Herpes Test is Right for me?

This is a question we get ask a lot!

Which herpes test should I select?

Herpes Swab

The best way to diagnose herpes is by swabbing an active lesion (herpes blisters) and running a test known as DNA PCR – this detects the DNA of the herpes virus and confirms if the lesions were indeed caused by herpes. It is best to swab these blisters as soon as possible after they first appear, as the virus is still shedding at this point (so greater chance of detection).

We offer the choice of a genital swab or an oral swab – depending on the location of the lesions. This choice is offered when you proceed with the standard Herpes PCR Screen.

Urine Sample

We offer a urine sample for detection of herpes, but this is NOT our primary recommendation. Urine samples should only be used for herpes if you have urinary tract symptoms (such as consistent pain or irritation) AND all other possibilities have been ruled out. It is possible to have a herpes infection inside the urinary tract, but most herpes presentations will be in visible areas and not internal. We therefore offer this test as a last resort test.

Herpes Blood Screen

The herpes blood test is not a diagnostic test. The herpes blood screen detects IgG antibodies. This test confirms that your body has encountered the herpes virus and has created antibodies.  You therefore have herpes, but it does not confirm an active infection. Although the blood test can distinguish between antibodies for Herpes Simplex 1 and Herpes Simplex 2, it is not site-specific, so it is unable to say which part of the body is affected. Some patients request this test as a peace of mind test or just out of curiosity.

We do not offer the IgM antibody test for herpes, as this is very unreliable - there is a lot of cross-reactivity with other viruses.

If you are unclear about the test you need, please do not hesitate to contact our help desk by phone or by email.