Bishop score
Cervical readiness for induction of labor.
Inputs
0 of 5Dilation
Effacement
Fetal station
Consistency
Position
When to use
- Before induction of labor.
Pearls and pitfalls
- A score above 8 suggests vaginal delivery is about as likely as with spontaneous labor.
Why use
Each component shown.
| Criterion | Points |
|---|---|
| Dilation: Closed | 0 |
| 1 to 2 cm | +1 |
| 3 to 4 cm | +2 |
| 5 cm or more | +3 |
| Effacement: 0% to 30% | 0 |
| 40% to 50% | +1 |
| 60% to 70% | +2 |
| 80% or more | +3 |
| Fetal station: −3 | 0 |
| −2 | +1 |
| −1 or 0 | +2 |
| +1 or +2 | +3 |
| Consistency: Firm | 0 |
| Medium | +1 |
| Soft | +2 |
| Position: Posterior | 0 |
| Mid | +1 |
| Anterior | +2 |