Cervical Dilation (cm)

0 — Closed (0 cm)+01 — 1–2 cm dilated+12 — 3–4 cm dilated+23 — ≥ 5 cm dilated+3

Cervical Effacement (%)

0 — 0–30%+01 — 40–50%+12 — 60–70%+23 — ≥ 80%+3

Fetal Station (cm above/below ischial spines)

0 — −3 or higher (presenting part floating)+01 — −2+12 — −1 or 0 (at spines)+23 — +1 or +2 (below spines)+3

Cervical Consistency

0 — Firm+01 — Medium (moderately soft)+12 — Soft+2

Cervical Position

0 — Posterior (directed toward sacrum)+01 — Mid (intermediate position)+12 — Anterior (directed toward pubic symphysis)+2

Bishop Score — Cervical Ripeness for Labor Induction