If you have had a previous caesarean section (LSCS), you may be wondering whether a vaginal birth is possible in your next pregnancy. For many women, the answer is yes. This is known as vaginal birth after caesarean, or VBAC.
A previous caesarean birth does not automatically mean that every future baby must be born by caesarean section. The most appropriate birth plan depends on the reason for your earlier caesarean, the type of uterine incision, your current pregnancy, your previous birth history and—most importantly—your own wishes and priorities.
For most women with one previous lower-segment caesarean and an otherwise uncomplicated pregnancy, planning a VBAC is a safe and reasonable option. The key is individualised counselling, a clear plan and birth in a maternity unit able to respond quickly if concerns arise in labour.
What does VBAC mean?
VBAC means giving birth vaginally after having had a caesarean birth in the past. It includes an uncomplicated vaginal birth, as well as an assisted vaginal birth using forceps or ventouse if this becomes necessary.
The alternative is an elective repeat caesarean section (ERCS), usually planned at or after 39 weeks unless there is a medical reason to deliver earlier. Both VBAC and repeat caesarean birth have benefits and risks. Neither is automatically the “right” option for every woman; a good decision is one that is clinically safe and fits your individual circumstances. NICE recommends discussing both planned vaginal birth and planned caesarean birth in the context of a woman’s medical situation, concerns, priorities and future reproductive plans.
What is the chance of a successful VBAC?
Overall, around 72–75% of women who plan a VBAC will achieve a vaginal birth. In other words, approximately three in four women who labour after one previous caesarean will give birth vaginally.
Your personal likelihood of a successful vaginal birth after LSCS may be higher if:
- You have had a vaginal birth before, particularly a previous successful VBAC.
- Your previous caesarean was for a reason unlikely to recur, such as a baby in breech position.
- Labour starts naturally.
- You have an uncomplicated singleton pregnancy with a baby in a head-down position.
- You are not significantly overdue and there is no concern about fetal growth or maternal health.
A previous vaginal birth is one of the strongest positive predictors.
On the other hand, success may be less likely if your prior caesarean was performed because labour did not progress, if induction is needed, if the baby is suspected to be large, or if there are pregnancy complications. These factors do not necessarily rule out VBAC, but they should form part of an honest and personalised discussion.
Benefits of a successful vaginal birth after caesarean
A successful VBAC usually means avoiding another abdominal operation. Recovery after a straightforward vaginal birth is often quicker, with less postoperative pain, a shorter hospital stay and earlier return to normal movement and family life.
For many women, VBAC also offers the chance to experience labour and vaginal birth after an unexpected or difficult first birth. That emotional aspect matters. Some women feel strongly that they would like to try for a vaginal birth; others feel that a planned caesarean gives them greater predictability and reassurance. Both responses are valid.
Avoiding multiple caesarean births may also be relevant if you hope to have more children. With each additional caesarean, surgery can become more complex because of scar tissue, and there can be an increased risk of placental problems in future pregnancies, including placenta praevia and placenta accreta spectrum.
What are the risks of VBAC?
The main concern when planning a vaginal birth after LSCS is uterine rupture. This is when the scar in the muscle of the uterus separates during labour. It is uncommon, but it can be serious for both mother and baby and may require an emergency caesarean birth, blood transfusion or, very rarely, hysterectomy.
The quoted risk of uterine rupture in planned VBAC is approximately 1 in 200, although an individual’s risk can differ according to their obstetric history and whether labour is induced or augmented.
It is also important to understand that not every planned VBAC results in a vaginal birth. If labour does not progress, if there are concerns about the baby’s wellbeing, or if there are signs that the scar may be under stress, an emergency caesarean may be recommended. An unplanned caesarean during labour generally carries more risk than a planned repeat caesarean, which is why choosing the right setting and monitoring plan is important.
Continuous fetal heart-rate monitoring is usually advised during labour after a previous caesarean. This helps the maternity team identify early signs that the baby may not be coping well or that urgent assessment is needed.
Who may not be suitable for VBAC?
VBAC is not advised for everyone. A planned repeat caesarean is usually recommended if you have had:
- A previous classical caesarean incision, where the incision involved the upper part of the uterus.
- A previous uterine rupture.
- Three or more previous caesarean births.
- A current pregnancy complication that itself requires a planned caesarean, such as certain placental problems or a persistent transverse lie.
For women with two previous lower-segment caesarean sections, the decision requires more detailed senior obstetric input. In carefully selected cases, VBAC may still be considered, but counselling should be individualised and include discussion of uterine rupture, the reason for previous caesareans and the plans for future pregnancies.
Making a birth plan that feels right
The best time to discuss VBAC versus repeat caesarean is early in pregnancy. Your obstetrician should review your previous operation note where available, including the reason for the caesarean and the type of uterine incision. This allows a more informed conversation about your chance of VBAC success and any specific risks.
By the third trimester, you should have a documented plan for labour and birth. This should include where you will give birth, whether spontaneous labour is expected, what would happen if you go beyond your due date, and how induction of labour would be approached if needed. Induction after a previous caesarean requires careful assessment because some methods can increase the risk of scar rupture.
Ultimately, the decision is not simply “vaginal birth versus caesarean.” It is about choosing the safest and most appropriate plan for you and your baby, with clear information, realistic expectations and support throughout pregnancy and labour.
If you are pregnant after a previous LSCS and would like individualised advice about VBAC, repeat caesarean birth or your options for future pregnancies, a consultation can help you make a confident, informed plan.
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