Medical calculators

Bishop Score

Cervical Favourability

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How it is calculated

Bishop score assesses whether the cervix is ready for induction. NICE (NG207) offers amniotomy and oxytocin above 6, and cervical ripening at 6 or less; its glossary calls 8 or more ready to dilate. ACOG uses more than 8 as the score that predicts a vaginal delivery as likely as after spontaneous labour. A low score predicts a longer induction and a higher chance of caesarean, which is what ripening is for.

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How ready the cervix is for induction of labour.

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