VBAC in Singapore: success rates, scar risks, how hospitals run a trial of labour and what to ask your gynae

VBAC, a vaginal birth after caesarean, is possible in Singapore if your scar and this pregnancy allow it. KKH's obstetricians say women who had a previous caesarean may still be suitable for VBAC, put the chance of a successful vaginal birth at 50 to 60%, higher if you've had a vaginal birth before, and the risk of the scar tearing at 0.5% after one caesarean. Thomson Medical quotes a higher 72 to 75% success rate for a first VBAC, and 85 to 90% if you've had one before. The attempt itself is called a trial of labour after caesarean, or TOLAC: you labour in hospital with your baby's heartbeat monitored the whole time and a theatre ready, and if labour stalls or your baby shows distress, you have a caesarean. No hospital here publishes a list of who accepts VBAC, so the real decision happens with your gynae. Below are the facts each hospital has on record and the questions to take to that appointment.

What VBAC actually means

A caesarean cuts through the wall of the womb, and that cut heals into a scar. The question for any later labour is whether the scar will hold through contractions. Thomson Medical's obstetrician explains that a lower segment caesarean, a horizontal cut low on the womb, has a lower risk of rupture, and mothers with this cut may try for VBAC. A classical caesarean, a vertical cut high on the womb, rules VBAC out because the rupture risk is high. That's why the type of scar on your womb, not just the fact that you had a caesarean, drives the decision.

Two questions sit side by side. Eligibility is whether your history makes a trial of labour reasonable. Success is how likely that trial is to end in a vaginal birth. You can be a good candidate and still end up with a repeat caesarean if labour doesn't progress, and that's a normal outcome. Talk through both with your gynae early, which is one reason the choice of doctor matters; our guide on how to choose a gynae in Singapore covers what to ask.

Who is a good candidate for VBAC

The biggest thing in your favour is a previous vaginal birth. KKH says the 50 to 60% success rate "may be higher if you previously had natural deliveries", and Thomson puts it at 85 to 90% after a previous successful VBAC.

You're more likely to be offered a trial of labour if:

• You've had one caesarean, through a low horizontal cut on the womb
• The reason for that caesarean was a one-off, such as your baby's position or distress, rather than your pelvis being too small for the baby's head
• You're carrying one baby, head-down
• Your placenta isn't low-lying
• You're delivering in a hospital that can do an emergency caesarean at any hour

Thomson's obstetrician lists the situations where VBAC may not be suitable and a repeat caesarean is usually advised:

• A previous classical (vertical, upper) cut on the womb
• A previous caesarean done because of cephalopelvic disproportion, where the pelvis is too small for the baby's head
• Unexpected tears in the womb during the last caesarean
• A low-lying placenta or a breech baby in this pregnancy
• Heart disease or severe high blood pressure
• Previous surgery to remove fibroids, which can weaken the wall of the womb

VBAC versus a planned repeat caesarean

Neither choice is right for everyone. The table sets out the trade-offs with Singapore figures where a hospital publishes them.

Keep the rupture figure in proportion. KKH says the risk "is only 0.5% after one previous C-section", but that when it happens, scar rupture "is life-threatening for both mother and baby" and can lead to a hysterectomy or brain injury to the baby. That's why a trial of labour only happens in hospital, with continuous monitoring and a theatre on hand.

Which Singapore hospitals support a trial of labour

No Singapore hospital publishes a VBAC policy or a list of who accepts trial of labour. KKH's old VBAC page now returns an error. What each hospital does say on its own pages, read on 11 October 2026:

In practice it's your obstetrician who decides whether to support a trial of labour, so ask at your first visits rather than at 36 weeks. If your gynae is reluctant, it's reasonable to ask why, and to get a second opinion.

How VBAC works in a Singapore hospital

A planned VBAC looks like any other hospital birth with closer watching. At KKH, everyone in labour has a drip in the arm and continuous CTG of the baby's heartbeat. Thomson's obstetrician explains why this matters for VBAC: "any change in the heartbeat can be a sign of uterine rupture", so you'll be asked to come in early.

If labour moves on well, you carry on to a vaginal birth. If it stalls or your baby shows distress, KKH says "an emergency C-section is warranted". That safety net is the whole idea of a trial of labour. Pain relief is the same as for other births, and KKH says an epidural is safe for VBAC; our overview of epidural and labour pain relief in Singapore explains the options.

Induction is the area with least published guidance. No Singapore hospital page we found sets out which induction methods it uses for VBAC, so ask your gynae directly (see the questions below). Your antenatal care is otherwise the usual schedule of prenatal checkups and scans, and a birth plan is a good place to note your wishes while staying flexible.

Questions to ask your gynae

1. What type of cut was made on my womb last time, and can you see the operation notes?
2. Based on why I had my caesarean, what do you think my chance of a vaginal birth is?
3. Do you support a trial of labour, and how many VBACs do you deliver a year?
4. At which hospital would I deliver, and is a theatre and anaesthetist available round the clock?
5. If I go past my due date, would you induce me, and with which method?
6. How long would you let labour go before recommending a caesarean?
7. Will my baby be on continuous monitoring, and can I move around with it?
8. Can I have an epidural, and how early?
9. What would make you advise a repeat caesarean during this pregnancy?
10. If I want more children, how does each choice affect future pregnancies?

Write the answers down. If you're seeing a private obstetrician, ask what a trial of labour that ends in an emergency caesarean would cost under your package, as it may be charged differently; our guide to hospital maternity packages compares packages.

Planning your VBAC: practical steps

• Get the operation notes from your first caesarean, so your scar type is confirmed rather than assumed
• Ask about VBAC at your first visits with your obstetrician, and settle where you'll deliver
• Talk through your odds honestly, using your history and this pregnancy
• Agree the induction plan and what would make you switch to a caesarean, so the choice is calmer on the day
• Plan your next pregnancy's timing: Thomson's obstetrician advises waiting 12 to 18 months after a caesarean before conceiving again
• In your next pregnancy, ask for an early scan: KKH says women with a previous caesarean should be offered screening for a caesarean scar pregnancy, best done before nine weeks, as it happens in about 0.15% of women who've had one
• Prepare for both outcomes, because a repeat caesarean is a safe and common result

If your VBAC ends in a repeat caesarean, recovery follows the usual path for surgical birth; our guide to caesarean recovery in Singapore covers healing and the first weeks.

Red flags and when to seek care

During a trial of labour your hospital team watches for warning signs, but you should also know what to flag. Tell your midwife or doctor at once, or go to your hospital's delivery suite, if you notice any of these during labour or in the weeks before it:

• Sudden, severe or constant tummy pain that doesn't ease between contractions
• Sharp or tearing pain over your old caesarean scar
• Heavy or bright red vaginal bleeding
• Your baby moving less than usual, which KKH lists as a reason to go to its Delivery Suite
• Feeling faint, dizzy, breathless or very unwell
• Regular contractions or your waters breaking: Thomson advises coming in early so your baby can be monitored

These can be signs of a problem with the scar or the placenta. Don't wait to see if a worrying symptom settles. In early pregnancy after a caesarean, heavy bleeding needs a prompt scan too, because of the small risk of a scar pregnancy.

Frequently asked questions

Is VBAC available in both public and private hospitals in Singapore?

KKH's obstetricians say women with a previous caesarean may still be suitable for VBAC, and Thomson Medical lists VBAC doctors. Other hospitals don't publish a policy, so whether you can try depends mainly on your obstetrician. Ask early in your pregnancy.

What is my chance of a successful VBAC?

KKH puts it at 50 to 60% after one caesarean, higher if you've had a vaginal birth before. Thomson Medical quotes 72 to 75% for a first VBAC and 85 to 90% after a previous successful VBAC. Your gynae can give a personal estimate based on why you had your caesarean.

How risky is uterine scar rupture during VBAC?

KKH says the risk is 0.5% after one previous caesarean, but rupture is life-threatening for mother and baby when it happens. That's why a trial of labour is done in hospital with continuous monitoring and emergency surgery on hand.

Can I have an epidural during a VBAC?

Yes. KKH's obstetricians say "Epidural is absolutely safe for VBAC". Your baby's heartbeat is monitored throughout, which is how most problems with the scar are picked up.

What happens if my VBAC does not work?

If labour stalls or your baby shows distress, KKH says an emergency caesarean is needed. It's a safe, common outcome. Trying in a fully equipped hospital means surgery is available straight away.

The takeaway

VBAC is a realistic option in Singapore for many women who've had one caesarean. With a low horizontal scar, a low-risk pregnancy and an obstetrician who supports trial of labour, KKH's figures give you about a 50 to 60% chance of a vaginal birth and a 0.5% risk of scar rupture. Confirm your scar type, find a supportive doctor early, plan for both outcomes and know the warning signs. A safe delivery for you and your baby is the goal, whichever way it happens.