Herpes, in proportion

Few diagnoses produce a reaction as disproportionate to their medical significance as genital herpes, which is a problem of stigma rather than of virology.

How common it is

Herpes simplex virus type 1 infects a very large share of the world's population, most commonly acquired in childhood and typically causing cold sores.

Type 2 is less prevalent and is the classic cause of genital infection, though type 1 now accounts for a large and rising proportion of first-episode genital herpes in many countries, transmitted through oral sex.

Most people carrying either type do not know, because most infections are asymptomatic or produce symptoms mild enough to be attributed to something else.

What it does

A first episode can be genuinely unpleasant: painful blisters and ulcers, sometimes with fever, and occasionally with difficulty passing urine that requires medical attention.

The virus then becomes latent in nerve ganglia and may reactivate.

Recurrences are typically much milder and shorter than the first episode, and they become less frequent over time in most people.

Type 2 recurs more often than type 1 in the genital area, which is a useful thing to know at diagnosis.

Many people have very few recurrences or none.

Transmission

The facts that change how people think about it.

Transmission occurs through direct skin contact, including during asymptomatic shedding when there are no visible lesions — which is how most transmission happens and why avoiding contact only during outbreaks is incompletely protective.

Condoms reduce transmission substantially and do not eliminate it, since the virus is present on skin they do not cover.

Suppressive antiviral treatment taken daily reduces transmission to a partner significantly, which is a genuine and underused option for serodiscordant couples.

And transmission risk falls over time in a relationship, as the uninfected partner's exposure without acquisition suggests either resistance or luck.

Treatment

Antiviral medication shortens episodes and reduces severity, and works best started early — which is why people with recurrences are frequently given a supply to keep at home rather than needing an appointment each time.

Suppressive therapy taken daily reduces recurrence frequency substantially and reduces transmission; it is appropriate for frequent recurrences, for significant distress, and for protecting a partner.

It is safe for long-term use with extensive experience behind it.

Simple measures during an episode: analgesia, salt baths, passing urine in water if it stings, loose clothing, and avoiding anything that irritates.

Testing, and its limits

The area causing most confusion.

Swabbing an active lesion is the accurate diagnostic method and is what clinics do.

Blood tests detect antibodies and are not recommended for general screening in most guidelines, because a positive result in someone without symptoms does not tell them when or from whom, cannot distinguish oral from genital site, has meaningful false-positive rates at low prevalence, and mostly produces distress without changing management.

Which is why herpes is generally not included in a standard sexual health screen, and why asking for it specifically usually prompts a conversation rather than a test.

Pregnancy

The situation where it genuinely matters medically.

Neonatal herpes is rare and serious, and the risk is highest when a woman acquires a first infection late in pregnancy, because there has been no time to develop antibodies to pass on.

Women with established recurrent herpes have a much lower risk, and suppressive treatment in late pregnancy is commonly offered.

Which makes this the one context where a partner with known herpes and a pregnant partner without it should have a specific conversation with a clinician, ideally early.

Telling a partner

The part people find hardest.

What helps: knowing the facts well enough to answer questions, since most distress comes from the other person's assumptions rather than from the information.

Telling early rather than after a relationship has developed, and not immediately before sex.

Being matter-of-fact, since the tone of the disclosure strongly shapes the response.

Being ready to explain suppressive treatment and condoms as risk reduction rather than presenting the situation as unmanageable.

And accepting that some people will react badly, which is about them and the culture rather than about the condition.

The proportion worth restoring

A cold sore and genital herpes are the same family of virus, and the difference in social reaction between the two is entirely a matter of location.

Nobody considers a cold sore a moral event.

The medical facts here are that this is a common, manageable, usually mild recurrent skin condition — and the psychological harm it causes is largely produced by how we talk about it rather than by what it does.

General information only, not medical advice. Consult a sexual health service or qualified clinician about diagnosis, treatment and pregnancy.