Herpes test (HSV-1): IgG antibody blood test
This herpes test (HSV-1) is a blood antibody (IgG) test that can show whether you have had earlier contact with herpes simplex virus type 1, which is commonly oral but can also be genital. An IgG result reflects past exposure, not necessarily a current or recent infection. It cannot tell you where or when contact occurred.
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Herpes Simplex 1 IgG: what this test measures
This test measures IgG antibodies specific to herpes simplex virus type 1 in your blood. IgG antibodies develop after initial infection and remain present in the body for life, indicating current or past infection.
A positive result means you have been exposed to HSV-1 at some point. It does not indicate when the infection occurred or whether you are currently experiencing active symptoms. The test cannot determine the location of infection (oral or genital).
Herpes Simplex 1 IgG: why this value matters
HSV-1 is very common and often causes few or no symptoms, so an antibody test may simply tell you whether your body has encountered the virus before. This can give context or peace of mind, without being alarming. A doctor can help put the result in perspective for your situation.
Herpes Simplex 1 IgG: when is testing worthwhile?
IgG antibodies (seroconversion) can take from a few weeks up to around 12 weeks to develop after exposure, so testing very soon after a possible contact may not yet show a reaction. Because of this window, timing affects what the result can show. A doctor can advise on the best moment to test and whether a repeat test is useful.
Herpes Simplex 1 IgG: what to do about an abnormal value
Male
Negative result indicates no HSV-1 exposure. Practice safe sexual practices.
Positive result indicates past HSV-1 exposure. Most people are asymptomatic. Consider antiviral medication if experiencing frequent outbreaks.
Female
Negative result indicates no HSV-1 exposure. Practice safe sexual practices.
Positive result indicates past HSV-1 exposure. Most people are asymptomatic. Consider antiviral medication if experiencing frequent outbreaks.
Herpes Simplex 1 IgG: lifestyle and this value
Avoid kissing or oral sexual contact during active cold sore outbreaks to reduce transmission risk. Use sunscreen on the lips and manage stress, as these are common triggers for outbreaks. Antiviral medications can help reduce the frequency and severity of recurrences.
Open communication with sexual partners about herpes status helps make informed decisions together. Remember that HSV-1 is extremely common and carrying the virus is not a reflection of personal hygiene or behaviour.
Herpes Simplex 1 IgG: frequently asked questions
What does a positive HSV-1 IgG result mean?
An IgG antibody test reflects past exposure to the virus, meaning your body has encountered it at some point. It does not necessarily indicate a current or recent infection, and it cannot tell you where or when contact happened.
Can this test tell me if the herpes is oral or genital?
No. The IgG test cannot tell you where the virus was acquired or whether it is oral or genital. Only a doctor, often alongside other information or testing, can help interpret what a result may mean for you.
How soon after exposure will antibodies show up?
Antibodies can take from a few weeks up to around 12 weeks to develop, so a very early test might not yet show them. A doctor can advise whether a later repeat test is sensible.
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Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Herpes Simplex 1 IgG
€49,-