Genital herpes is far more common than most people realise, and for many it stays mild or even goes unnoticed. It is caused by the herpes simplex virus, type 1 or type 2, which stays in your body after a first contact and can become active again from time to time. Much of the shame around herpes comes from how little it is talked about, not from how serious it usually is. In this article we calmly explain what an outbreak looks like, how transmission works, and what a test can and cannot tell you.
The main thing to start with: a herpes diagnosis says little about you as a person.
It is a common virus that has circulated among people for a very long time.
What exactly is genital herpes?
Genital herpes is a common infection caused by the herpes simplex virus (HSV-1 or HSV-2). After the first infection the virus stays in nerve cells for life and can periodically become active again. Many people notice little or nothing, while others have an outbreak now and then.
HSV-1 used to be linked mainly to cold sores around the mouth and HSV-2 to the genitals. That distinction has blurred, partly through oral sex. Both types can now cause genital herpes.
According to Soa Aids Nederland, herpes is widespread and a large share of the population carries the virus, often without knowing it (Soa Aids Nederland). That can be reassuring: you are far from the only one.
For most people herpes is mainly an occasional nuisance, but otherwise harmless. It is not a condition that needs to define your daily life.
What does a first outbreak look like?
A first outbreak of genital herpes usually causes small, painful blisters or sores around the genitals or anus. It often comes with itching, a burning feeling and sometimes fever or swollen lymph nodes. The first episode tends to be more intense than later ones.
The blisters dry up after a few days and usually heal on their own within one to several weeks. Not everyone recognises the symptoms, because they can also be subtle.
Some people mistake a first outbreak for a yeast infection, a urinary infection or irritation. If you are unsure about a bump or blister, read our explainer on the less well-known STIs or check with a doctor.
During a first outbreak, urinating can feel tender if there are sores near the urethra. Many people also feel a little flu-like or tired in those first days.
It can help to know that this is part of how your body first responds to the virus.
How often do outbreaks come back?
Whether and how often outbreaks return varies greatly from person to person. Some people never get anything again after the first time, while others have an occasional mild recurrence. Recurring outbreaks are usually shorter and less painful than the first.
Many people notice that an outbreak can flare up with stress, tiredness, illness or a weakened immune system. You can often feel an outbreak coming through a tingling or burning sensation where the virus becomes active.
Thuisarts.nl notes that for most people repeated outbreaks tend to become less frequent over time (Thuisarts.nl). For those who are bothered a lot, a doctor can discuss treatment options.
Is herpes contagious without visible blisters?
Yes, herpes can be contagious without visible blisters. The virus can be present on the skin temporarily without you noticing anything, which is called asymptomatic shedding. As a result, transmission can happen at moments when there are no symptoms.
This is one of the least known sides of herpes, and one of the reasons it is so widespread. People often pass the virus on without knowing they carry it.
The risk of transmission is usually highest during or just before an outbreak. Condoms lower the risk, but they do not cover all skin and do not fully rule out transmission.
This does not mean transmission is inevitable. Many couples live together for years where only one of them carries the virus.
For recurring symptoms, a doctor can sometimes discuss medication that lowers the risk of transmission. That is something to weigh up calmly together.
An open conversation with a partner often helps more than you might expect.
What can a herpes test tell you, and what can it not?
A herpes test can work in two ways, and it helps to understand the difference. During an active outbreak a doctor can take a swab from a blister for a PCR test, which detects the virus directly at that site. A blood test, by contrast, measures antibodies (IgG) against the virus.
A positive IgG blood test shows that you have been in contact with the virus at some point. What such a test does not tell you is where the infection sits or when you became infected.
In other words, a blood test can confirm an earlier exposure, but it cannot determine whether it concerns an oral or genital infection, or how long you have carried the virus. That is why the RIVM often advises a swab rather than blood alone when symptoms are active (RIVM).
A blood test can also be done somewhere between two outbreaks, because antibodies stay in your blood for a long time. Keep in mind that after a new infection it can take several weeks before antibodies become measurable.
If you want a broader picture of viral infections such as herpes, you can look at a viral infections package. A separate HSV-2 IgG value can clarify whether you have antibodies against this type.
What is a sensible next step?
A sensible next step depends on your situation and your symptoms. If you have active blisters or sores now, a swab at a doctor can give the most precise answer about that site. If you mainly want to know whether you have ever been exposed, a blood test can be a suitable option.
Keep in mind that a herpes diagnosis is no reason for shame. The virus says nothing about hygiene or how many partners you have had.
For many people clarity actually brings calm, even if the result is positive. You then know where you stand and can deal with it consciously.
If you are unsure which test fits your situation, read our guide on which STI test you need and when. If you have other symptoms alongside herpes, our explainer on syphilis stages and testing may be useful.
Whatever you choose, you are not on your own, and it can be talked about calmly.
Sources
Every blood test result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
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