Herpes Blood Test (HSV-1 IgG & IgM Antibodies)

The Herpes Blood Test (HSV-1 IgG & IgM Antibodies) is a straightforward blood test that screens for past or recent exposure to herpes simplex virus type 1 (HSV-1). It is suitable for anyone who wants clarity about their HSV-1 status, whether you have had cold sores, are concerned about potential exposure, or simply wish to include this in a broader sexual health screen. The test uses a simple blood sample, which is analysed in the laboratory using enzyme-linked immunosorbent assay (ELISA) to detect antibodies produced by the immune system in response to the virus.

What the test screens for

• HSV-1 IgG antibodies: These are produced several weeks after initial infection and typically remain detectable for life. A positive IgG result indicates past exposure to HSV-1, even if you have never noticed symptoms.
• HSV-1 IgM antibodies: These are usually the first antibodies to appear after a recent infection or reactivation. A positive IgM result may suggest a recent or active infection, although IgM can sometimes be positive in other circumstances, so it is interpreted alongside IgG and your clinical history.

Why it matters

Many people carry HSV-1 without knowing it, as the virus can remain dormant and cause no noticeable symptoms. Knowing your status helps you make informed decisions about your health, discuss results openly with partners, and seek appropriate medical advice if needed. This test provides a clear, confidential way to understand your HSV-1 antibody profile, giving you the knowledge to take control of your sexual health and wellbeing.

Herpes Simplex Virus Type 1 (HSV-1) Antibodies
- HSV-1 IgG antibody
- HSV-1 IgM antibody

No special preparation required.

For blood tests, we recommend drinking plenty of water beforehand to ensure smooth sample collection. If you are taking any regular medication, continue to do so unless advised otherwise by your doctor.