Bishop's Score Calculator
Bishop score
5
Bishop Score Calculator
Maximum possible
13
Interpretation
Unfavourable: at 6 or less the cervix is usually described as unripe, and cervical ripening is commonly used before induction.
Favourable cervix
No
Worked out from Bishop EH. Pelvic scoring for elective induction and 2 other sources.
Bishop 1964 was derived on multiparous women at term to predict spontaneous labour within a week, not to predict the success of an induction; that use came later.
Consistency and position are subjective, and inter-examiner agreement on them is only moderate.
A structured record of one vaginal examination, not a prediction for an individual. Bishop derived the score to predict spontaneous labour in multiparous women at term, and inter-examiner agreement on consistency and position is only moderate. Decisions about induction belong to the obstetric team.
How this is worked out
7 steps
- Cervical dilation: 1-2 cm = 1 point(s).
- Cervical effacement: 40-50% = 1 point(s).
- Fetal station: -2 = 1 point(s).
- Cervical consistency: Medium = 1 point(s).
- Cervical position: Mid-position = 1 point(s).
- Classical Bishop total = 5 of a possible 13.
- Unfavourable: at 6 or less the cervix is usually described as unripe, and cervical ripening is commonly used before induction.
Componentstable
| component | grade | points | maximum |
|---|---|---|---|
| Cervical dilation | 1-2 cm (1 point) | 1 | 3 |
| Cervical effacement | 40-50% (1 point) | 1 | 3 |
| Fetal station | -2 (1 point) | 1 | 3 |
| Cervical consistency | Medium (1 point) | 1 | 2 |
| Cervical position | Mid-position (1 point) | 1 | 2 |
Modifierstable
Classical Bishop score - no modifiers applied.
Results are general information, not financial, tax, legal, medical or engineering advice.