| Cervical scoring
system |
| Parameter | 0 | 1 | 2 | 3 |
| Amount of mucus | None | Scant: a small amount of mucus can
be drawn from the cervical canal | Dribble: a glistening drip of
mucus seen in the external os; mucus easily drawn from the cervical
canal | Cascade: abundant mucus pouring
out of the external os |
| Spinnbarkeit | None | Slight: uninterrupted mucus thread
may be drawn approximately ¼ of the distance between the external
and the vulva | Moderate: uninterrupted mucus
thread may be drawn approximately ½ of the distance between the
external os and the vulva | Pronounced: uninterrupted mucus
thread may be drawn for the whole distance between the external
os |
| Ferning | None - amorphous mucus | Linear: fine linear ferning seen
in a few spots, no side branching | Partial: good ferning with side
branches in parts of the slide, linear ferning or amorphous mucus
in other parts | Complete: full ferning of the
whole preparation |
| Cervix | Closed: mucosa pale pink, the
external os hardly admits a thin applicator | | Partially open: mucosa pink, the
cervical canal easily penetrable by an applicator | Gaping: mucosa hyperaemic, the
external os distended |