Pregnancy

VBAC: Who's a Candidate, What Success Looks Like

Save

A VBAC, or vaginal birth after cesarean, is a safe option for many people, and most who attempt a trial of labor give birth vaginally, often 6 to 8 in 10 after one low-transverse cesarean. Uterine rupture is the main serious risk but is uncommon. Your incision type and history guide the decision.

Last updated: July 2026

Talk to a clinician

Gale can help you find a clinician in your state and request a visit.

Find care →

Am I a candidate for a VBAC?

Candidacy for a VBAC turns on a few concrete details from your history rather than a gut feeling. The strongest single factor is the type of incision on your uterus, not the scar you see on your skin. A low-transverse (horizontal, lower-segment) incision, the most common kind, supports a trial of labor; a classical (vertical, upper-segment) incision generally does not. One prior cesarean is more favorable than two or more. The reason for the first cesarean matters too: a one-time cause such as a breech baby, often delivered by planned cesarean 4, may not repeat, while a pelvis-versus-baby mismatch might. A past condition such as preeclampsia does not by itself rule out a VBAC, and interpregnancy-care guidance addresses how soon a next pregnancy is advisable after surgery 3.

What are the real success rates?

Success rates for a planned VBAC are encouraging for well-selected candidates. Across large series, roughly 6 to 8 in 10 people who attempt a trial of labor after one cesarean give birth vaginally, figures commonly cited in counseling rather than drawn from a single trial. Your personal odds rise if you have given birth vaginally before, if labor starts on its own, and if the first cesarean was for a non-recurring reason. Odds are somewhat lower if labor has to be induced or if certain medical conditions are present. A Cochrane review links continuous one-on-one support during labor to more spontaneous vaginal births and fewer cesareans 1, so who is in the room with you genuinely affects the outcome.

How risky is uterine rupture?

Uterine rupture is the complication that shapes the entire VBAC conversation. It means the prior scar separates during labor, which can threaten both parent and baby, but it is uncommon, occurring in well under 1 in 100 trials of labor after one low-transverse cesarean, with figures often cited around 1 in 200. Continuous electronic fetal monitoring is used throughout a trial of labor precisely because a change in the baby's heart rate is often the earliest warning; a Cochrane review found continuous monitoring lowers a serious newborn neurological complication while raising the chance of a cesarean or assisted delivery 2. A planned repeat cesarean avoids rupture but carries the usual surgical and recovery trade-offs instead. Neither path is entirely risk-free.

What does a trial of labor involve?

A trial of labor after cesarean looks much like any hospital labor, with a few extra guardrails. You labor in a unit where an operating room, anesthesia, and a surgical team can respond quickly, and your baby is monitored continuously 2. Inducing or augmenting labor is possible but approached cautiously, since some methods can raise rupture risk, and your team weighs that case by case. Recommendations can also shift with age and health: a first trial of labor at 20 and a pregnancy after 40 carry different baseline risks that a clinician factors in. Discussing your birth preferences early is part of routine antenatal care 5, and it helps to plan for both a vaginal birth and a possible repeat cesarean.

When a VBAC plan needs your OB team

A detailed conversation with an obstetrician is the heart of any VBAC decision. Bring the operative report from your prior birth if you can, because it names the uterine incision type, which is the single most important detail and is not always what the skin scar suggests. Ask about your hospital's ability to perform an urgent cesarean quickly, since that capacity is part of what makes a trial of labor safe. According to obstetric and midwifery guidance, the choice is yours to make with your clinician, informed by your history and your hospital's resources. Gale can help you gather those records and questions before you book a prenatal visit.

Common questions

Spacing matters for scar healing, and interpregnancy-care guidance addresses how soon a next pregnancy is advisable after a cesarean. Very short intervals are generally discouraged because they may raise the chance of complications. Your obstetrician can give a recommendation based on your surgery, your healing, and your overall health.

Sometimes. A trial of labor after two prior cesareans is offered in some settings for carefully selected people, though success rates are a little lower and rupture risk somewhat higher than after one. Policies vary by hospital and clinician, so it is worth asking specifically rather than assuming the answer is no.

Not necessarily, but it changes the calculation. Some induction methods are used cautiously after a cesarean because they can raise rupture risk, and induced labor has a somewhat lower VBAC success rate than spontaneous labor. Many people are still induced for a medical reason and go on to a vaginal birth; your team individualizes the approach.

Neither is uniformly safer; they trade different risks. A successful VBAC avoids major surgery and usually means an easier recovery, while a planned repeat cesarean avoids the small chance of uterine rupture. The best choice depends on your candidacy, your values, and your hospital's resources, which is why it is a shared decision.

Related

Say it back

How would you explain this to someone you love?

Two or three sentences, just as you’d say it. Gale reflects back what you focused on — a mirror, not a quiz.

Talk to a clinician

Gale can help you find a clinician in your state and request a visit.

Find care →

VBAC: signs that need urgent attention

  • —Sudden, constant abdominal pain that does not ease between contractions during a trial of labor is a reason to alert your labor team immediately
  • —A noticeable change or drop in your baby's movements late in pregnancy or during labor is a reason to be evaluated right away
  • —Vaginal bleeding that soaks a pad, rather than light spotting, during labor is a reason to tell your clinician at once
  • —Feeling faint, with a racing heart or a scar that suddenly hurts, is a reason to seek immediate obstetric review

If you are in labor and develop sudden severe abdominal pain, heavy vaginal bleeding, or a marked change in your baby's movements, alert your labor and delivery team immediately or call 911, because these can signal a uterine emergency that needs care right away.

This article is general health education, not medical advice. Whether a VBAC is right for you depends on your incision type, obstetric history, current pregnancy, and birth setting, and is a decision to make with an obstetrician or midwife.

References

  1. 1.Bohren MA, Hofmeyr GJ, Sakala C, Fukuzawa RK, Cuthbert A (2017). Continuous support for women during childbirth. Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD003766.pub6 ✓Cochrane review showing continuous one-on-one labor support is associated with more spontaneous vaginal births and fewer cesareans; supports the point that labor support improves the chance of a vaginal birth in a trial of labor after cesarean.
  2. 2.Alfirevic Z, Devane D, Gyte GML, Cuthbert A (2017). Continuous cardiotocography (CTG) as a form of electronic fetal monitoring (EFM) for fetal assessment during labour. Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD006066.pub3 ✓Cochrane review of continuous electronic fetal monitoring during labour, which reduced neonatal seizures while increasing cesarean and instrumental births; supports continuous monitoring as standard during a trial of labor and its measured trade-offs.
  3. 3.American College of Obstetricians and Gynecologists / Society for Maternal-Fetal Medicine (2019). Obstetric Care Consensus No. 8: Interpregnancy Care. Obstetrics & Gynecology. doi:10.1097/AOG.0000000000003025 ✓ACOG/SMFM Obstetric Care Consensus on interpregnancy care, which addresses birth spacing and the interval between pregnancies; supports interpregnancy interval as a candidacy consideration after a cesarean.
  4. 4.Hofmeyr GJ, Hannah M, Lawrie TA (2015). Planned caesarean section for term breech delivery. Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD000166.pub2 ✓Cochrane review of planned caesarean section for term breech delivery; supports the statement that a breech baby is a common, often non-recurring reason for a first, planned cesarean.
  5. 5.National Institute for Health and Care Excellence (2024). Antenatal care (NG201). National Institute for Health and Care Excellence (NICE). link ✓NICE antenatal care guideline (NG201), which includes discussing birth preferences and planning as part of routine antenatal care; supports early birth-preference conversations during pregnancy.

5 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — every citation independently verified. Editorial policy

← Back to the health library