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The cervix is at the bottom of the uterus
and is connected to the uterus at the isthmus. Stimulated
by the ovarian hormones the cervix produces several types
of cervical mucus. The diagram at the right illustrates the
various crypts from which the mucus secretions emanate. These
have a crucial role in fertility
and in the general health of the woman. Cervical mucus discharges
at the vulva and can be felt and observed by the woman. This
is the basis of the Billings Ovulation Method.
The behaviour of the cervix and the correlation with the
symptoms at the vulva are explained below using animation.
More detailed commentary on each stage in the ovarian cycle
is given in an accompanying sequence
of static images.
| Cervix Colour Codes: |
G mucus |
L
mucus |
P
mucus |
S mucus |
Menstrual flow |
|
Isthmus & Cervix
|
Billings Ovulation Method
WAIT
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