Considering a Vaginal Birth After Cesarean (VBAC)? Our free VBAC Calculator helps you understand your potential success rate based on key medical factors. Quickly assess your likelihood by inputting details like previous birth history, C-section reason, age, BMI, and estimated fetal weight. Empower yourself with information for a confident birth plan.
Formula:
The VBAC success likelihood is estimated based on a multifactorial scoring system, considering:
- Prior Vaginal Delivery (PVD): History of a vaginal birth significantly increases success.
- Reason for Prior Cesarean: Non-recurrent causes (e.g., breech presentation, fetal distress) often lead to higher success rates than recurrent causes (e.g., cephalopelvic disproportion, failure to progress).
- Maternal Age: Generally, younger age correlates with higher success.
- Pre-pregnancy Body Mass Index (BMI): Lower BMI is often associated with better VBAC outcomes.
- Estimated Fetal Weight (EFW): Lower estimated birth weight tends to favor VBAC success.