Obstetrics & PediatricsEvidence-Based Golden Standard
Modified Bishop Score (Cervical Favourability)
Predicts likelihood of successful induction of labour and vaginal delivery from five cervical/pelvic examination findings (0–2 or 0–3 each).
Modified Bishop = Dilation (0–3) + Effacement (0–3) + Station (0–3) + Consistency (0–2) + Position (0–2), total 0–13
Score ≥8 favourable cervix (induction likely to succeed, similar to spontaneous labour) · ≤6 unfavourable (cervical ripening recommended first)
Published Clinical Benchmark Cases
Clinical Parameters & Inputs
Computed OutputUnfavourable Cervix (Score 0)
0/ 13
Diagnostic Interpretation
Modified Bishop score is 0/13 (≤6) — unfavourable cervix. Cervical ripening is recommended before oxytocin; an unfavourable cervix raises the risk of failed induction and caesarean delivery.
Calculation Breakdown
Component Sum
Dilation 0 + Effacement 0 + Station 0 + Consistency 0 + Position 0 =Bishop 0 / 13
Clinical Decision Pearls
- A score ≥8 predicts successful induction; ≤6 favours cervical ripening before oxytocin.
- Ripening options include mechanical (Foley balloon) and pharmacologic (prostaglandin E2/E1) methods — choose by parity, gestation, and scar status.
Limitations & Confounders
- Some inter-observer variation exists, especially for effacement and station.
- Symphysis-fundal height, parity, and BMI also influence induction success but are not in the score.
Evidence & Citations
- Bishop EH. Pelvic scoring for elective induction. Obstet Gynecol. 1964;24(2):266-268.