Natural childbirth after cesarean section

2026-05-27 12:00 Childbirth

In short: Vaginal birth after cesarean (VBAC) is possible for most women with a single uterine scar. The success rate is about 60-80%. The main risk is rupture of the uterus along the scar (0.5-0.9%). The key condition is a maternity hospital with the possibility of an emergency caesarean.

What is VBAC

VBAC (Vaginal Birth After Caesarean) is a vaginal birth in a woman who has previously had a cesarean section. In Russia, they are more often called "natural birth after cesarean" (VBAC).

Until recently, there was a rule "once a cesarean is always a caesarean". Today, ACOG, NICE and the WHO recognize VBAC as a safe alternative for most women, provided conditions are met.

Who is suitable for childbirth after cesarean

VBAC is possible if:

one previous cesarean with a transverse incision in the lower segment of the uterus;
there are no other contraindications to natural childbirth (placenta previa, transverse position of the fetus, etc.);
At least 18-24 months have passed since the caesarean;
The maternity hospital is equipped with an operating room and an anesthesiology team ready for emergency intervention.

Relative contraindications (discussed individually): two or more cesarean sections, unknown type of incision on the uterus, breech presentation, multiple pregnancy.

Success Rate

According to ACOG, with the spontaneous onset of labor, the success rate of VBAC reaches 60-80%. Success is influenced by:

previous vaginal birth - increases the chance to 85-90%;
the cause of the previous cesarean (not breech presentation, but fetal distress – the chances are lower);
spontaneous onset of labor (the best prognostic factor).

Main risk: rupture of the uterus along the scar

The risk of uterine rupture with VBAC is approximately 0.5–0.9%, a rare but potentially dangerous complication. Signs: sudden sharp pain between contractions, change in the shape of the abdomen, drop in pressure, change in fetal heartbeat. With such symptoms, an emergency cesarean is required.

For comparison: the risk of a planned repeat cesarean is also not zero - it carries its own complications (adhesions, bleeding, damage to neighboring organs), which increase with each subsequent operation.

Induction of labor in VBAC

Induction of labor (stimulation) with VBAC increases the risk of uterine rupture by about twice as much as spontaneous onset. The use of oxytocin and, especially, misoprostol requires special caution and is carried out only in the presence of strict indications and constant monitoring.

Follow-up during VBAC

During childbirth after a cesarean section, constant cardiotocographic (CTG) monitoring is necessary - it allows you to quickly catch the signs of fetal suffering and proceed to surgery in time. Access to a vein (intravenous catheter) is maintained throughout labor.

It is important to give birth in a hospital that can start surgery within minutes. Planned delivery at home or in small centers without an operating room is not recommended with VBAC.

How to prepare

Start a conversation with your doctor in the third trimester of pregnancy. Ask for a transcript of a previous cesarean section – the type of incision on the uterus should be documented.

Choose a maternity hospital with experience in VBAC management and a round-the-clock anesthesia service. Include your wishes in the birth plan. Learn about pain management: Epidural anesthesia for VBAC is not contraindicated.

Recovery from VBAC

If the birth was successful, the recovery is the same as after a normal natural birth. Read more in the article recovery after natural childbirth. The scar on the uterus remains and will require attention during the next pregnancy.

When to see a doctor

Tell your doctor right away during labor if:

the pain between contractions suddenly increased sharply;
the fetal heartbeat has changed (on the CTG monitor);
you feel dizzy, your blood pressure drops;
There was a feeling of "something bursting" in my stomach.

Frequently Asked Questions

Is it possible to give birth naturally after two cesarean sections?

Perhaps, but the risks are higher. ACOG allows this possibility in some cases if there is an equipped hospital and the patient's consent. The decision is strictly individual.

Does a child's weight affect the success of a VBAC?

An estimated fetal weight of more than 4 kg reduces the likelihood of VBAC success, but is not an absolute contraindication. Ultrasound weight assessment has an error of 10-20%, so it is taken into account in conjunction with other factors.

Do I need my husband's consent for VBAC?

No. The medical decision is made by the female patient. The partner can participate in the discussion, but their consent is not legally required.

Conclusion

VBAC is a real and safe option for most women with a single uterine scar. Competent preparation, the right choice of a maternity hospital and an open dialogue with the doctor will help you make an informed decision - exactly the one that suits you.

Bibliography

ACOG Practice Bulletin No. 205. Vaginal Birth After Cesarean Delivery. Obstet Gynecol. 2019. https://pubmed.ncbi.nlm.nih.gov/31022125/
WHO. WHO Statement on Caesarean Section Rates. 2015. https://www.who.int/publications/i/item/WHO-RHR-15.02
NICE guideline CG132. Caesarean section. 2011 (updated 2021). https://www.acog.org/womens-health/faqs/cesarean-birth
Landon MB et al. Maternal and perinatal outcomes associated with a trial of labor after prior cesarean delivery. NEJM. 2004. https://pubmed.ncbi.nlm.nih.gov/15509819/
Ministry of Health of the Russian Federation. Clinical guidelines: Caesarean section. 2021. https://cr.minzdrav.gov.ru/

This material is for informational purposes only and does not constitute medical advice and is not a substitute for medical advice. If a child's sleep is accompanied by alarming symptoms, a pronounced deterioration in health, problems with breathing, feeding or weight gain, it is necessary to consult a qualified medical specialist as soon as possible, and not rely only on information from the Internet.

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