Closed Cervix

Definition - What does Closed Cervix mean?

A closed cervix is a position of the cervical os during an infertile time in a woman's cycle. Tracking cervical position can be used as part of a fertility awareness method (FAM) where a woman's physiological symptoms are tracked and interpreted to determine her fertile window.

Tracking cervical position can be used along with observing other symptoms in order to increase the chance of conception or to avoid pregnancy.

FertilitySmarts explains Closed Cervix

The cervix is the passageway from the vagina to the uterus. The opening of the cervical canal is called the cervical os. The os opens during the fertile time of a woman's cycle to allow cervical mucus (required for the transportation of sperm during conception) to exit and for sperm to enter the uterus. The os remains closed outside of a woman's fertile window (with the exception of menstruation) to prevent bacteria from entering the uterus.

A cervix is considered closed when it is in its least open position. Determining what a closed cervix feels like is individual. Because changes in the cervix can be relatively subtle, position is best determined when checked daily.

FAM is the overarching name for the group of methodologies used to naturally determine a fertile window. The symtothermal method (STM) is often considered the most accurate of these methods where basal body temperature (BBT) and cervical mucus (CM) consistency are tracked as primary fertility signs. Charting cervical positing for the purposes of identifying a fertile window is most effective when used in conjunction with the STM.

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