Herpes Simplex Virus Type 2 Immunoglobulin G (IgG) Antibody, Quantitative

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms of genital herpes, such as sores or itching in the genital area, or if you have a history of recurrent outbreaks. It can also be used to assess exposure in individuals without current symptoms, such as during pregnancy or for diagnostic confirmation in suspected cases.

What to Expect Before the Test

No special preparation is needed. You may have a blood sample drawn from a vein in your arm, similar to other blood tests. If you’re pregnant or have concerns about blood draws, discuss these with your provider beforehand.

What the Test Results Mean

Positive results indicate the presence of HSV-2 antibodies, suggesting past or current infection. Negative results mean no detectable antibodies, which may mean you’ve never been exposed or the test was taken too early after exposure. Results alone don’t confirm active infection; they only indicate exposure history.

How Results Are Used

These results help guide treatment decisions, monitor immunity, and assess risk for transmission—especially important during pregnancy or in sexual health evaluations. They don’t replace clinical evaluation of symptoms or active infection.