Herpes Simplex Virus Immunoglobulin G (IgG) Antibody by Enzyme-Linked Immunosorbent Assay (ELISA)

Why This Test Is Done

Your healthcare provider may recommend this test if you have symptoms like sores, pain, or unusual rashes that could be caused by HSV. It’s also used to check for past infection in people without current symptoms, such as during pregnancy or before certain surgeries. Sometimes, it’s part of a broader evaluation for recurrent infections or to confirm exposure in high-risk situations.

What to Expect Before the Test

No special preparation is needed. A blood sample is typically drawn from a vein in your arm. You may feel a small pinch when the needle is inserted, but the process usually takes less than five minutes. If you’re pregnant or have a history of bleeding disorders, let your provider know before the test.

What the Test Results Mean

Positive results indicate the presence of HSV IgG antibodies, suggesting past infection. Negative results mean you likely haven’t been exposed recently, but they don’t rule out past infection entirely. If you’re concerned about HSV, discuss your results with your healthcare provider to understand next steps, such as testing for HSV IgM (another antibody type) or viral load if needed.

Common Reasons for Testing

This test is often used in high-risk groups, like pregnant women, to screen for HSV transmission risks. It may also be part of a diagnostic workup for unexplained recurrent sores or infections, especially if HSV is suspected.