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Bishop Score Calculator

Enter relative fields in the Bishop score calculator and know your Bishop score for labor.

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The bishop score calculator evaluates the specific Bishop score of a pregnant woman along with clinical advice. This is critical to understand the probability of normal delivery versus C-section.

What Is a Bishop Score?

The Bishop score is used to predict how close a woman is to labor. Gynecologists examine the cervix to determine the score. A score within the normal range indicates higher chances of a successful normal birth.

What is a Bishop Score?

Bishop Score Range

The Bishop score ranges from 0 to 13. A score of 0 means you are not ready for induction, while a score of 13 indicates better chances for induction. This score helps in evaluating fetal position and readiness for labor.

Factors of Bishop Score in Pregnancy

Healthcare providers use the following 5 factors to calculate your Bishop score:

Dilation of the Cervix

Dilation refers to how open the cervix is in preparation for labor. A fully dilated cervix is about 10 centimeters. Dilation is measured manually and can be uncomfortable. Using a bishop score calculator helps assess cervix readiness more easily.

Effacement of the Cervix

Effacement refers to the thinning or shortening of the cervix. A fully effaced cervix (100%) is paper-thin. This is evaluated by the Bishop score and indicates readiness for labor.

Consistency of the Cervix

Consistency describes how firm or soft the cervix feels. A softer cervix indicates it is preparing for labor, while a firmer cervix shows it is less ready.

The consistency of the cervix refers to how soft or firm it is. Women with a softer, more flexible cervix are more likely to dilate naturally and experience labor pains. You can compare cervix softness to the softness of your lips versus the firmness of your nose tip.

Position of the Cervix

As labor approaches, the cervix moves closer to the birth canal. The position can be:

  • Anterior
  • Posterior

Fetal Position (or Fetal Station)

Fetal position measures the baby's head location relative to the ischial spine in the pelvis.

Fetal Station Chart

The Bishop score chart factors have 3 or 4 options to indicate how favorable the cervix is for labor.

Dilation of Cervix Position of Cervix Effacement of Cervix Consistency of Cervix Fetal Position Number of Points
Closed Posterior 0% - 30% Firm -3 0
1-2 cm Middle 40% - 50% Medium -2 1
3-4 cm Anterior 60% - 70% Soft -1, 0 2
5+ cm -- 80% -- +1, +2 3

Working of Bishop Score Calculator

The Bishop score for induction can be calculated online using the following inputs and outputs:

Input:

  • Select the range of effacement
  • Choose cervix consistency
  • Choose the fetal station type
  • Enter the head position
  • Enter the dilation size
  • Tap Calculate

Output:

  • Bishop score
  • Clinical advice relative to Bishop score

FAQs

What Is a Good Bishop Score?

A higher Bishop score indicates that labor is closer and induction has a good chance of success. A good Bishop score is generally considered to be 8 or higher.

What Does a Bishop Score of 10 Mean?

A Bishop score of 10 suggests that you may go into labor soon. If induction were needed, a normal delivery is highly likely.

Why Is It Called Bishop Score?

The Bishop score is named after Edward Bishop, who created it in 1964 to predict the success of labor induction based on five criteria.

What Is a Modified Bishop Score?

A modified Bishop score considers three factors instead of the original five, allowing healthcare providers to simplify the assessment while still predicting labor readiness.

References

From ResearchGate: Dilation Effacement Station Chart

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