VBAC stands for vaginal birth after cesarean. It means giving birth through the vagina after a past delivery by C-section. Many people who have had one cesarean are medically able to attempt a vaginal birth in a later pregnancy. The attempt itself is sometimes called a trial of labor after cesarean, or TOLAC. Whether VBAC is a safe option for you depends on your medical history, your current pregnancy, and where you plan to deliver.
Warning Signs During a Trial of Labor After Cesarean
If you are attempting a VBAC and notice any of the following during labor, tell your care team right away or seek emergency care:
- Sudden, sharp, or constant pain in your abdomen that feels different from normal contractions
- Vaginal bleeding that is heavy or unusual
- A sudden change in your baby’s movement or heart rate that your provider flags on the monitor
- Dizziness, a racing heart, or feeling like you might faint
- A contraction pattern that suddenly slows down or stops after being strong and regular
These signs do not always mean something serious is happening, but they need fast evaluation. This is one reason VBAC labor is closely monitored in a hospital setting.
Who May Be a Good Candidate for VBAC
Your care team looks at several factors to decide whether VBAC is a reasonable option for you. Common ones include:
- The type of incision used on your uterus during your past cesarean (a low-transverse, side-to-side cut on the uterus itself is different from the type of cut on your skin, and it generally carries a lower risk during a later labor)
- How many prior cesareans you have had
- Whether you have had a prior uterine rupture or other uterine surgery, such as removal of fibroids
- Your current pregnancy, including your baby’s size and position
- Whether the hospital where you plan to deliver has staff and equipment ready to perform an emergency cesarean quickly if needed
Only your obstetric provider can review your medical records, including the operative report from your prior cesarean, to tell you which factors apply to you.
Understanding Uterine Rupture Risk in Context
The most serious risk of attempting a VBAC is uterine rupture, a tear in the wall of the uterus at the site of the earlier cesarean scar. This is rare, and for people with one prior low-transverse cesarean incision, most clinical estimates place the risk at under 1 in 100 attempts. Your own risk may be higher or lower depending on your history, so ask your provider what number applies to you specifically.
A rupture is treated as an emergency because it can cause heavy bleeding and can put both the parent and baby at risk. This is why VBAC labor is generally recommended only in a hospital with staff available to move quickly to a cesarean if needed, not at home or in a setting without immediate surgical backup.
Potential Benefits of a Successful VBAC
For people who are good candidates, a successful VBAC can come with some advantages compared with a repeat cesarean, including:
- A shorter hospital stay
- A faster physical recovery
- Avoiding surgery and its risks, such as infection or the need for a blood transfusion
- Lower risk of complications in future pregnancies that can come from having multiple cesareans
Most people who attempt a VBAC with their provider’s support are able to deliver vaginally, though a repeat cesarean can still become necessary if labor does not progress safely.
VBAC vs. Repeat Cesarean: A Side-by-Side Look
- Vaginal birth after cesarean (VBAC): Attempts labor and vaginal delivery. Requires monitoring in a hospital equipped for emergency surgery. Main risk is uterine rupture, which is rare. May still end in a cesarean if labor does not progress.
- Planned repeat cesarean: Scheduled surgical delivery. Avoids labor and the specific risk of labor-related uterine rupture. Comes with standard surgical risks, such as infection, blood loss, and a longer recovery. Risk of complications in future pregnancies rises with each additional cesarean.
Neither option is automatically safer for every person. The right choice depends on your medical history, this pregnancy, and your own priorities, discussed with your provider.
How to act on what you know about Vaginal Birth After Cesarean (VBAC)
- What type of incision was used on my uterus during my past cesarean, and does that affect my VBAC eligibility?
- Based on my history, what is my personal estimated risk of uterine rupture?
- Does the hospital where I plan to deliver have staff and an operating room ready for an emergency cesarean at all times?
- What signs during labor should prompt me to speak up immediately?
- If I am not a candidate for VBAC this pregnancy, could that change in a future pregnancy?
Questions studies have not settled about Vaginal Birth After Cesarean (VBAC)
Some situations call for extra caution or may rule out VBAC entirely, including a prior “classical” (up-and-down) uterine incision, a prior uterine rupture, certain uterine surgeries, or a pregnancy with twins or other multiples in some cases. People carrying a baby who is very large for their pelvis, or who have specific placenta complications, may also face added risk. This article is a general educational overview. It does not cover every medical scenario, and it does not replace a personal risk assessment from your own obstetric provider, who can review your full history and this pregnancy.
Common questions about Vaginal Birth After Cesarean (VBAC)
Can I have a VBAC after more than one cesarean?
It depends on your history. Some people with two prior low-transverse cesareans may still be considered candidates, while others are not. This is a decision to make with your provider based on your specific records.
Does VBAC hurt more than a scheduled cesarean?
Labor pain during a VBAC attempt is similar to labor pain in any vaginal birth, and pain relief options like an epidural are typically available. A cesarean involves surgical pain and a different recovery process. Neither route is pain-free, and comfort during recovery differs by delivery type.
What if I go into labor before my VBAC plan is finalized?
Go to your planned delivery hospital and tell the team you have a prior cesarean and were considering a VBAC. They will evaluate your labor and your history in real time to guide next steps safely.
Is a VBAC safe to attempt at a birth center or at home?
Because the main risk of VBAC is a rare but serious uterine rupture that can require emergency surgery, VBAC is generally recommended only in a hospital setting with staff and equipment ready for an emergency cesarean. Ask your provider about the specific setting they recommend for your situation.
Related Reading
- Pregnancy & Preconception: Getting Ready, Before and After a Positive Test
- Fertility & Fertility Evaluation
- Preparing for a Reproductive Health Visit
- Read Our Full Medical Disclaimer
Educational Disclaimer
This article is for general educational purposes only. It is not medical advice, diagnosis, or treatment, and reading it does not create a provider-patient relationship. It does not recommend VBAC or repeat cesarean for any individual, and it does not cover every medical history or hospital policy. Always talk with a licensed obstetric provider about your specific pregnancy and delivery history before making a birth plan. If you are having a medical emergency, call 911 or go to the nearest emergency room.