VBAC Calculator
Calculate probability of successful vaginal birth after cesarean section
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Calculate VBAC Success Probability
About VBAC
VBAC (Vaginal Birth After Cesarean) is the attempt to deliver vaginally after a previous cesarean section. Success rates vary based on multiple factors.
VBAC Success Rates:
- Overall: 60-80% success rate
- Previous VBAC: 90%+ success rate
- First attempt: 60-70% success rate
- Uterine rupture: <1% risk
Success Categories:
- High: >80% success probability
- Moderate: 60-80% success probability
- Low: <60% success probability
Positive Factors:
- • Previous vaginal delivery
- • Spontaneous labor
- • Younger maternal age
- • Normal BMI
- • Adequate time since C-section
Risk Factors:
- • Previous uterine rupture
- • Classical C-section incision
- • Induced labor
- • Advanced maternal age
- • Obesity
- • Large baby
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