liminfoBishop Score Calculator
Free web tool: Bishop Score Calculator
Bishop Score
0 / 13
Assessment
Unfavorable - Cervical ripening recommended before induction
Dilation
0
Effacement
0
Station
0
Cervical Consistency
0
Cervical Position
0
Bishop Score for cervical readiness assessment. For clinical reference only.
About Bishop Score Calculator
The Bishop Score Calculator is a clinical reference tool used in obstetrics to assess cervical readiness for labor induction. Developed by Dr. Edward Bishop in 1964, the score evaluates five cervical criteria: dilation (0–3 cm), effacement (0–80%+), fetal station (−3 to +2), cervical consistency (firm/medium/soft), and cervical position (posterior/mid/anterior). Each factor is assigned points, and the total out of 13 determines how favorable the cervix is for spontaneous or induced labor.
Obstetricians, midwives, and labor nurses use the Bishop Score to make informed decisions about labor induction timing. A score of 8 or higher indicates a ripe, favorable cervix with a high likelihood of successful induction or spontaneous onset. Scores of 6–7 suggest moderate readiness, while scores below 6 typically call for cervical ripening agents such as prostaglandins or mechanical dilators before induction is attempted.
This browser-based tool computes the Bishop Score in real time as you select values from dropdown menus corresponding to each of the five criteria. All five sub-scores are displayed individually alongside the total score and an automatic assessment — Favorable, Moderately Favorable, or Unfavorable — based on standard clinical thresholds. Processing occurs entirely in your browser; no patient data is transmitted or stored anywhere.
Key Features
- Scores all five Bishop criteria: dilation, effacement, station, consistency, and position
- Real-time total score calculation out of 13 as you change any dropdown
- Automatic assessment label: Favorable (≥8), Moderately Favorable (6–7), or Unfavorable (<6)
- Individual sub-score display cards for each criterion for quick review
- Color-coded result panel — green for favorable, yellow for moderate, red for unfavorable
- Full Korean and English bilingual interface via locale detection
- 100% client-side processing — no patient data ever leaves your browser
- Dark mode support and mobile-responsive layout for bedside or clinic use
Frequently Asked Questions
What is the Bishop Score?
The Bishop Score is a pre-labor cervical assessment system used to evaluate readiness for labor induction. It scores five factors — cervical dilation, effacement, fetal station, cervical consistency, and cervical position — each on a 0–3 scale (consistency and position on 0–2), yielding a total out of 13.
What does a Bishop Score of 8 or higher mean?
A score of 8 or above indicates a favorable or ripe cervix. This means the cervix is well-dilated, significantly effaced, soft, and anterior, and the fetus is well-engaged. Spontaneous labor is likely to begin soon, and if induction is needed, it is expected to succeed.
What happens if the Bishop Score is less than 6?
A score below 6 is considered unfavorable. In this case, clinicians typically recommend cervical ripening before induction using prostaglandin gel, misoprostol, or a Foley balloon catheter to improve the score and increase the chances of successful induction.
How is the Bishop Score different from the Modified Bishop Score?
The original Bishop Score uses the five criteria described above and has a maximum of 13. Some institutions use a modified version that replaces station scoring or adjusts point weightings slightly. This calculator implements the original 1964 Bishop scoring system.
Is the Bishop Score used for all pregnancies?
The Bishop Score is primarily used when labor induction is being considered — typically for post-term pregnancies, pre-eclampsia, gestational diabetes, fetal growth restriction, or other medical indications. It is not routinely scored in low-risk pregnancies progressing naturally.
What is cervical effacement and how does it affect the score?
Effacement refers to the thinning and shortening of the cervix as it prepares for delivery. It is measured as a percentage: 0% is uneffaced, 50% is half-effaced, and 100% is fully effaced. Higher effacement earns more points and indicates greater readiness for labor.
What does fetal station mean in the Bishop Score?
Fetal station describes the position of the presenting part (usually the baby's head) relative to the ischial spines of the mother's pelvis. Station −3 is high in the pelvis (0 points), station −2 earns 1 point, stations −1 or 0 earn 2 points, and stations +1 or +2 earn 3 points.
Can this calculator be used for clinical decisions?
This tool is designed for clinical reference and educational purposes. While the scoring logic follows the established Bishop criteria, final clinical decisions regarding labor induction should always be made by qualified healthcare providers who consider the full clinical picture, fetal monitoring data, and patient history.