Dr HB Lo Integrative GP

Women’s health · Birth decision prep

Caesarean or vaginal birth, after a previous caesarean

For women and birthing people planning a birth after a caesarean. This puts a planned vaginal birth (VBAC) and a planned repeat caesarean side by side, in real numbers — so you can decide with your team, not just be told. It never tells you which to choose.

Just so I show you the right numbers — have you had a caesarean before, and is this about an upcoming birth?
This tool is for planning a birth after a previous caesarean. For a first birth or general birth choices, talk with your midwife or GP — or try Consult Prep.
Only used to tailor the “when to talk to your team” line. Leave blank if you’d rather not say.

Just to check — is this happening right now, or is it something to discuss with your maternity team?

Dr HB Lo · Integrative GP
Birth after a caesarean — your side-by-side · generated
General information to help you prepare for a conversation about your birth. Not personal medical advice, not a recommendation for or against any type of birth, and not an emergency service. In an emergency call 000.
Your birth-after-caesarean side-by-side drhblo.com/tools

In your words

The one thing to know

Most women who plan a vaginal birth after one caesarean do have one — around 7 in 10 succeed.

(RANZCOG C-Obs 38)

A planned repeat caesarean is also a reasonable, safe choice. This isn’t about which is ‘right’ — it’s about which fits your body, your history, and the family you’re hoping to have. Decide your answer, then take it to your team.

The two pathways, side by side

Neither column is the recommended one. They are laid out as two real choices — that is the whole point.
What it means Plan a vaginal birth (VBAC) Plan a repeat caesarean (ERCS)
Chance it goes to plan Plan a vaginal birth (VBAC)~7 in 10 plan a VBAC and achieve it (C-Obs 38) Plan a repeat caesarean (ERCS)Planned — you choose the date; ~all proceed as a caesarean
Risk of the scar tearing (uterine rupture) Plan a vaginal birth (VBAC)~1 in 200 (0.5%) in planned VBAC; higher if labour is induced (C-Obs 38) Plan a repeat caesarean (ERCS)Very low — labour scar-rupture risk is largely avoided
Recovery Plan a vaginal birth (VBAC)Usually quicker if the vaginal birth succeeds Plan a repeat caesarean (ERCS)Longer — it is major abdominal surgery
If the plan changes Plan a vaginal birth (VBAC)~3 in 10 end up needing an unplanned caesarean in labour Plan a repeat caesarean (ERCS)Scheduled; less likely to change
Future pregnancies Plan a vaginal birth (VBAC)Each future birth has more options open Plan a repeat caesarean (ERCS)Each repeat caesarean adds risk to future pregnancies (placenta problems) (C-Obs 38)

These are general numbers for one previous caesarean. Your own history changes them — that’s the conversation to have with your team.

The honest bit — both sides

Here’s the part the cheerful version skips: in a planned VBAC, the scar tears in about 1 in 200 births, and when that happens it’s an emergency for you and your baby. The added risk of a baby dying around birth is small — roughly 2 to 3 extra babies in 10,000 compared with a planned repeat caesarean — but it isn’t zero. (RANZCOG C-Obs 38)

And the planned caesarean isn’t ‘the safe option’ for free: it’s major surgery, recovery is longer, and every caesarean you have raises the risk of serious placenta problems in future pregnancies. Neither path is risk-free. That’s exactly why it’s a real decision — and why these numbers belong in front of your obstetrician, not in your head at 3am.

The questions to take to your team

  • Looking at my history, what does my own chance of a successful VBAC look like?
  • Is there anything about my situation that would make a VBAC unsafe to attempt?
  • If I plan a VBAC, what’s the plan if labour needs to be started or sped up?
  • How will you monitor my baby and my scar during a VBAC labour?
  • Given how many more children I’m hoping for, how should that change my thinking?
  • If I choose a planned caesarean, when would you schedule it, and why then?

Email yourself this side-by-side — one page to put in front of your obstetrician.

You’ll get a clean printable: both pathways in real RANZCOG numbers, the honest risks on both sides, and the questions to ask — on one page you can hand over.

That doesn’t look like an email — want to try again, or just screenshot it?

Sent — check your inbox. Here’s your comparison again so you can screenshot it now.

This is the general comparison. The full Birth-After-Caesarean kit walks through the questions for your exact history, the success-likelihood factors your team will weigh, and a birth-preferences worksheet you can take in. → See the kit

My leaning right now, and the questions I still want to ask: