Bishop score

Bishop score is a pre-labor scoring system used to assist in predicting whether induction of labor will be required. It is also known as the Bishop's score or cervical score. The score assesses the readiness of the cervix for labor and is based on several components including cervical dilation, effacement, consistency, position, and the baby's station. A higher score suggests that labor will start spontaneously or that induction of labor might be successful.

Bishop Lyons Consecration

Components

The Bishop score is determined by evaluating five main factors:

• Cervical dilation: The opening of the cervix, measured in centimeters from 0 (no dilation) to 10 (fully dilated).
• Cervical effacement: The thinning of the cervix, expressed as a percentage from 0% (not effaced) to 100% (fully effaced).
• Cervical consistency: The texture of the cervix, which can be firm, medium, or soft.
• Cervical position: The orientation of the cervix, which can be posterior (toward the back), mid-position, or anterior (toward the front).
• Fetal station: The position of the baby's head in relation to the ischial spines of the pelvis, measured in centimeters from -5 (high and not engaged) to +5 (crowning).

Scoring

Each component of the Bishop score is assigned a value based on its status. The total score can range from 0 to 13. A score of 6 or less generally indicates that labor is not imminent and that the cervix is not favorable for induction. A score of 8 or more suggests that the cervix is favorable for labor, and induction is more likely to be successful.

Clinical Use

The Bishop score is used by healthcare providers to make decisions about labor induction. It helps to predict the likelihood of a successful vaginal delivery and can influence the choice of induction methods. For example, a low Bishop score might lead a provider to use methods to ripen the cervix before attempting other induction techniques.

Limitations

While the Bishop score is a useful tool, it has limitations. It is somewhat subjective, as the assessment of the cervix can vary between examiners. Additionally, the score does not account for other factors that may affect labor and delivery, such as the baby's size, maternal pelvis size, and the presence of contractions.

Related Pages

• Labor induction
• Cervical dilation
• Cervical effacement
• Fetal station