Herpes Simplex Virus 2 Immunoglobulin G (IgG) Antibody, Serum

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms of genital herpes, such as sores, itching, or pain in the genital area. It can also be used to confirm a diagnosis when symptoms are unclear or if you have had multiple partners. Additionally, it may be part of routine testing for sexually transmitted infections (STIs) or if you have concerns about past exposure to HSV-2.

What to Expect Before the Test

No special preparation is needed for this blood test. You may have a small needle inserted into a vein in your arm to draw blood. If you’re nervous about needles, let your healthcare provider know so they can offer comfort measures.

What Happens During the Test

A healthcare professional will clean the area with an antiseptic and insert a small needle into your vein. Blood will be collected into a tube. The process usually takes a few minutes. You may feel a slight pinch or discomfort, but it should not last long.

What the Results Mean

If your test result is positive for HSV-2 IgG antibodies, it means your immune system has likely been exposed to HSV-2 at some point. This does not mean you currently have an active infection, but it confirms past exposure. If you are sexually active, this result could be relevant for discussing your sexual health with your provider.