VBAC or Repeat C-Section: Understanding Your Options

Having one C-section doesn't automatically mean every future birth has to be a C-section. Depending on your previous surgery, your current pregnancy, your preferences, and the resources available where you give birth, you may be able to try for a vaginal birth after cesarean.

For many families, both paths are reasonable. The right decision depends on your individual risks, your priorities, and your plans for future pregnancies.

What Do VBAC and TOLAC Mean?

VBAC means vaginal birth after cesarean. TOLAC means trial of labor after cesarean, which is laboring with the goal of having a VBAC.

The distinction matters because not every TOLAC ends in a vaginal birth. If labor doesn't progress safely or another concern develops, a repeat C-section may become necessary.

TOLAC and Repeat C-Section at a Glance

	TOLAC	Planned repeat C-section
Chance of a vaginal birth	About 60–80%	None
Recovery	Shorter if VBAC is successful	Longer, as with any abdominal surgery
Uterine rupture	About 0.5–0.9% with one prior low-transverse incision	Very rare, because labor is avoided
Predictability	Less predictable; may end in an unplanned C-section	Scheduled date, usually at 39 weeks
Future pregnancies	A successful VBAC avoids adding another uterine scar	Each additional C-section raises some placenta-related risks

If You're Considering TOLAC

What Are the Benefits of a Successful VBAC?

Compared with another C-section, a successful VBAC avoids abdominal surgery. According to ACOG, benefits include a shorter recovery, less blood loss, and a lower risk of infection. Avoiding another uterine scar may also lower some risks in future pregnancies.

For some people, experiencing labor or vaginal birth is personally important. For others, avoiding another surgical recovery is the bigger priority. Both are valid reasons.

What Are the Risks of TOLAC?

The most serious risk is uterine rupture, when the scar on your uterus from your previous C-section opens during labor. It's uncommon, about 0.5–0.9% for people with one prior low-transverse incision, but it can be an emergency for you and your baby. Your individual risk depends on factors such as the type of uterine incision you had and aspects of your current pregnancy.

There are also risks if a TOLAC ends in an unplanned C-section. That's why the conversation isn't simply "VBAC versus C-section." It includes your likelihood of a successful VBAC, the possibility of needing surgery during labor, and the benefits and risks of each path.

Your Uterine Incision Matters

The scar you can see on your abdomen doesn't tell you what type of incision was made on your uterus. Even a low, horizontal skin scar can sit over a different type of uterine incision.

Low-transverse (side to side, low on the uterus) is the most common type and has the lowest risk of rupture in a future labor.
Low-vertical incisions have similar VBAC success rates, and TOLAC may still be an option.
Classical (high vertical) or T-shaped incisions carry a higher risk of rupture, so TOLAC generally isn't recommended.

Ask for the operative report from your previous C-section if you don't already have it. Your provider can review your uterine incision, the reason for your C-section, and anything else that happened during surgery that could affect your options. If the report can't be found, TOLAC may still be possible, since most unknown incisions are low-transverse.

Who May Be a Candidate?

Many people are told they can't try for a VBAC when they may still have that option. According to ACOG, TOLAC can be considered:

After one or two prior low-transverse C-sections
When you're pregnant with twins, if there's no other reason to avoid a vaginal birth
When the type of your prior incision is unknown, unless there's strong reason to suspect a classical incision
When a large baby is suspected, though a larger baby may lower the chance of success

What Can Affect the Chance of a Successful VBAC?

No calculator or single factor can tell you exactly how your next birth will go. Many providers use the MFMU Network VBAC calculator as a starting point. It was updated in 2021 to remove race and ethnicity from its estimate. Factors your provider may consider include:

Why your previous C-section happened
Whether you've had a vaginal birth before, either before or after your C-section
Whether labor starts on its own or is induced
How much time has passed since your C-section
Your baby's estimated size and other aspects of your current pregnancy

The reason for your first C-section can be especially useful context. A C-section for something that may not happen again, such as a breech baby, is different from one for labor that stopped progressing. Still, neither automatically determines what will happen this time.

Epidurals, Induction, and Timing

Epidurals are an option during TOLAC. Many people are surprised to learn this. An epidural doesn't hide the signs of uterine rupture, and ACOG notes it may help more people feel comfortable trying labor.
Induction is possible but works a little differently. It can raise the risk of rupture and lower the chance of a successful VBAC compared with labor that starts on its own. Some methods, such as misoprostol, generally aren't used after a C-section because they raise the risk of rupture.
Spacing between births matters. A short interval between your C-section and your next birth, often defined as less than 18 months, has been linked to a higher risk of rupture and a lower chance of VBAC.

Where Can You Have a TOLAC?

Hospital resources and policies matter. Because uterine rupture and other emergencies need a fast response, ACOG recommends TOLAC in facilities where staff are immediately available for an emergency C-section. Some hospitals or practices don't offer TOLAC, even for people who may otherwise be good candidates.

If VBAC matters to you, ask about it early in pregnancy. It may affect which provider or hospital you choose.

If You're Considering a Repeat C-Section

What Are the Benefits of a Planned Repeat C-Section?

A planned repeat C-section offers predictability and avoids the risk of uterine rupture during labor. It's usually scheduled at 39 weeks. It may be the recommended option for some uterine incision types, placental conditions, pregnancy complications, or other individual circumstances.

Some people also prefer a planned repeat C-section because of a previous birth experience, anxiety about labor, recovery planning, or their own values. Those preferences deserve a thoughtful conversation, not judgment.

What Are the Risks of Another C-Section?

A repeat C-section carries the general risks of surgery, including infection, bleeding, blood clots, anesthesia complications, and injury to nearby organs. Recovery usually takes longer than after an uncomplicated vaginal birth.

The number of C-sections you've had also matters for future pregnancies. According to ACOG, risks such as placenta previa, placenta accreta spectrum, and hysterectomy increase with each additional C-section. If you hope to have more children, include that in your decision.

It Doesn't Have to Be All or Nothing

Your plan can include a backup. Some people plan a TOLAC with a date for a repeat C-section if labor hasn't started by a certain point. Others schedule a repeat C-section but discuss what to do if labor starts on its own before that date. Talk with your provider about what makes sense for you.

Questions to Ask Your Provider

Am I a candidate for TOLAC based on my previous birth and this pregnancy?
What type of uterine incision did I have?
Do you and this hospital routinely support TOLAC?
What makes you think I'm more or less likely to have a successful VBAC?
How do you handle induction or speeding up labor with Pitocin during TOLAC?
What monitoring do you recommend during labor, and why?
What emergency surgical and anesthesia resources are available if I need an urgent C-section?
What circumstances would make you recommend a planned repeat C-section?
How do the risks change if I hope to have more children?
If I choose a repeat C-section, what family-centered options are available?

Making the Decision

One person may prioritize the chance to avoid another surgery. Another may prioritize the predictability of a planned repeat C-section. You don't need to choose based on what someone else considers the "better" birth. Ask your provider to explain your individual chances, the risks that matter most in your situation, and what resources are available where you plan to give birth.

Whether you plan a TOLAC or a repeat C-section, your birth preferences still matter. A plan can guide your care team while leaving room to change course if you or your baby need something different.

To learn more:

New to C-sections? Our guide to what to know about a C-section covers why they happen and what to expect.
Planning a TOLAC? Our guide to lowering your chance of an unnecessary C-section covers labor support, positions, and questions to ask.
Planning a repeat C-section? Our guide to family-centered C-section options covers ways to personalize your birth.

Sources

For education only; not a substitute for individualized medical advice. Sources reviewed for this article: