Bishop Scoring System
Modified from Bishop EH. Pelvic scoring for elective induction. Obstet Gynecol 1964;24:267
Source: ACOG Practice Bulletin, Number 10, November 1999
FACTOR | |||||
SCORE | DILATATION (cm) | EFFACEMENT (%) | STATION* | CERVICAL CONSISTENCY | POSITION OF CERVIX |
0 1 2 3 |
Closed 1-2 3-4 5-6 |
0-30 40-50 60-70 80 |
-3 -2 -1, 0 +1, +2 |
Firm Medium Soft — |
Posterior Mid-position Anterior — |
* Station reflects a -3 to +3 scale
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