There is a lot of misinformation circulating about the risk of herpes during pregnancy, and much of it is designed to frighten women into unnecessary caesarean sections.
Let me set the record straight.
If you have herpes and you are pregnant or planning to become pregnant, the single most important thing I can tell you is this: the vast majority of women with herpes give birth to perfectly healthy babies. This is not a reassurance I am offering to make you feel better. It is a fact, supported by decades of clinical research and confirmed by the most recent global data available.
A 2026 systematic review published in the Journal of Global Health — the largest study of its kind, drawing on 143 publications from across the world — found that neonatal herpes occurs in approximately one in every 12,000 births. One in 12,000. That is the reality. Not the catastrophe you may have been led to imagine.
Neonatal herpes is serious when it does occur. I will not downplay that. But it is rare. And the factors that determine whether it occurs are well understood — which means they are largely within your control.
The key factor is when you acquired herpes — not whether you have it
If you contracted herpes before your pregnancy or early in the first trimester, your body has had time to produce antibodies. Those antibodies cross the placenta and give your baby significant protection. The risk of transmitting herpes to your newborn in this situation — which is the situation for the great majority of pregnant women with herpes — is less than 1 per cent.
The risk is highest when a woman contracts herpes for the first time in the last trimester of pregnancy. In that situation, the body has not yet had time to develop protective antibodies, and the risk of vertical transmission can be as high as 30 to 50 per cent. Approximately 85 per cent of mother-to-child transmission occurs during delivery itself, through contact with infected genital secretions.
This is why knowing your herpes status matters — before or early in pregnancy. And it is why your partner’s status matters equally.
Both partners need to be tested
This is something most doctors do not emphasise nearly enough.
If you have herpes and your partner does not, the risk to your baby is low because your body already has the antibodies it needs. But if your partner has herpes and you do not — or if neither of you knows your status — then the danger is that you could acquire herpes for the first time during pregnancy, particularly in the third trimester when the risk to the baby is highest.
Nearly 80 per cent of women who deliver an HSV-infected infant have no known history of genital herpes. That statistic should reframe the entire conversation. The greatest risk is not to women who know they have herpes and are managing it. The greatest risk is to women who do not know — because they were never tested, or because their partner was never tested, or because no one told them that testing mattered.
Type-specific herpes blood tests exist. They can identify HSV-1 and HSV-2 antibodies. They are not part of routine prenatal screening in most countries. If your doctor has not offered you one, ask. If your partner has not been tested, ask them to be. This is one of the simplest and most effective things you can do to protect your pregnancy.
You can have a safe natural childbirth
This is where fear-based medicine does the most damage.
The medical system pressures women with a history of herpes toward caesarean sections — partly to reduce the already small risk of transmission, partly to reduce the risk of malpractice suits, and partly because a scheduled surgery is more convenient for a hospital than the unpredictability of natural labour. A caesarean section reduces the risk of neonatal herpes transmission, but it does not eliminate it — and it comes with its own risks to both mother and child.
Here is what the medical establishment’s own guidelines say: if there are no active lesions and no prodromal symptoms when your labour begins, there is no medical reason for a caesarean section. None. The American College of Obstetricians and Gynecologists, the European guidelines, and the Society of Obstetricians and Gynaecologists of Canada all agree on this point.
For women with a history of genital herpes, current standard care recommends suppressive antiviral therapy starting at 36 weeks of gestation. This reduces the chance of an active outbreak at the time of delivery and reduces viral shedding. A Cochrane review found that women receiving antiviral therapy from 36 weeks had a recurrence rate at delivery of less than 4 per cent, compared to 15 per cent without treatment. When there are no lesions and no symptoms at the time of labour, vaginal delivery is safe and appropriate.
You have every right to deliver your baby naturally. Do not let anyone frighten you out of that right without a genuine medical reason.
What your doctor is probably not telling you
The standard medical approach to herpes in pregnancy focuses on two things: suppressive antiviral medication from week 36, and the decision between vaginal delivery and caesarean section. That is important. But it is not the whole picture.
What is missing from that conversation is everything that happens in the months before week 36. The state of your immune system throughout your pregnancy. The role of diet in keeping the virus dormant. The role of sleep, of stress management, of emotional wellbeing. The fact that the same factors that trigger outbreaks in anyone with herpes — poor diet, chronic stress, depleted immunity, unresolved shame — are the same factors that determine whether you are likely to have an active outbreak near the time of delivery.
A woman who has spent her entire pregnancy managing her immune system holistically — through diet, through herbal support, through stress management, through emotional work — is in a fundamentally different position at 36 weeks than a woman who receives a prescription at 36 weeks and nothing else.
The antiviral prescription at week 36 is the last line of defence. It should not be the only line.
The rising concern most doctors are not discussing
There is a shift happening in the epidemiology of herpes that has direct implications for pregnancy, and most doctors are not talking about it.
HSV-1 — traditionally associated with oral cold sores — is increasingly being acquired genitally rather than orally, particularly in younger adults in developed nations. This is driven by declining childhood exposure to HSV-1 (which means fewer people have protective antibodies by the time they become sexually active) and by changes in sexual practices.
A 2025 review in the Journal of Infection confirmed that HSV-1 is replacing HSV-2 as the leading cause of genital herpes in several developed regions. In recent UK surveillance, approximately 52 per cent of neonatal herpes cases were caused by HSV-1. The 2026 Journal of Global Health meta-analysis found a 1.4 per cent annual increase in the proportion of neonatal herpes cases attributable to HSV-1.
Why does this matter for pregnancy? Because a woman who has never been exposed to HSV-1 and acquires it genitally for the first time during pregnancy faces the same high-risk situation as a new HSV-2 infection. And because HSV-1 is not routinely tested for in prenatal care, many of these infections go undetected.
This is another reason why testing — for both types, for both partners — is not optional. It is essential.
What I encourage you to do
If you have herpes and are pregnant or planning to become pregnant, here is what I would tell you if you were sitting across from me.
First, know your status. Get a type-specific blood test if you have not had one. Know whether you carry HSV-1, HSV-2, or both.
Second, know your partner’s status. If your partner has herpes and you do not, extra precautions during pregnancy are essential — particularly during the third trimester.
Third, do not wait until week 36 to start taking care of your immune system. The work of keeping the virus dormant is not a last-minute intervention. It is a way of living — diet, sleep, stress management, emotional health — that should begin before conception and continue throughout pregnancy.
Fourth, do not let fear drive your birth decisions. If you have a history of herpes and no active lesions when your labour begins, you can deliver your baby naturally. That is what the evidence supports. That is what the guidelines say. And that is what the vast majority of women with herpes do, safely, every day.
If you or your partner are planning a pregnancy and herpes is part of the picture, I encourage you to work with someone who understands both the medical and the holistic dimensions. That is what the Initial Consultation is for.
[Book an Initial Consultation at natropractica.com]