Printed on 2/13/2026
For informational purposes only. This is not medical advice.
The Bishop Score is a pre-labor scoring system used to assess the readiness of the cervix for induction of labor. It evaluates five components: cervical dilation, effacement, station, consistency, and position. A higher score indicates a more favorable cervix and a higher likelihood of successful induction. Scores ≥ 8 are considered favorable.
Formula: Bishop = Dilation(0–3) + Effacement(0–3) + Station(0–3) + Consistency(0–2) + Position(0–2)
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A Bishop Score ≥ 8 is considered favorable for induction, with a high likelihood of successful vaginal delivery. Scores 6–7 are intermediate. Scores ≤ 5 are unfavorable and may require cervical ripening agents (prostaglandins or mechanical methods) before oxytocin induction.
Dilation: how open the cervix is. Effacement: how thin the cervix has become. Station: how far the baby's head has descended. Consistency: firmness of the cervix. Position: whether the cervix faces forward (anterior) or backward (posterior).
Common indications include: post-term pregnancy (≥41 weeks), preeclampsia, gestational diabetes, premature rupture of membranes, chorioamnionitis, and oligohydramnios. Elective induction at 39+ weeks may also be offered. The Bishop Score helps predict success.
A low score (≤5) suggests the cervix is not ready for induction. Options include: cervical ripening with prostaglandins (misoprostol, dinoprostone), mechanical dilation (Foley balloon), waiting for spontaneous labor, or reassessing in a few days.