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Normal vaginal discharge is composed of cervical mucus, vaginal fluid, shedding vaginal and cervical cells, and bacteria. [1] The majority of the liquid in vaginal discharge is mucus produced by glands of the cervix. [1] [4] The rest is made up of transudate from the vaginal walls and secretions from glands (Skene's and Bartholin's). [4]
Plasma from the vaginal walls due to vascular engorgement is considered to be the chief lubrication source, and the Bartholin's glands, located slightly below and to the left and right of the introitus (vaginal opening), also secrete mucus to augment vaginal wall secretions. Near ovulation, cervical mucus provides additional lubrication.
Bloody show or show is the passage of a small amount of blood or blood-tinged mucus through the vagina near the end of pregnancy.It is caused by thinning and dilation of the cervix, leading to detachment of the cervical mucus plug that seals the cervix during pregnancy and tearing of small cervical blood vessels, [1] and is one of the signs that labor may be imminent. [2]
At ovulation cervical mucus is clear, runny, and conducive to sperm; post-ovulation, mucus becomes thicker and is more likely to block sperm. Several fertility awareness methods rely on observation of cervical mucus, as one of three primary fertility signs, to identify a woman's fertile time at the mid-point of the cycle. Awareness of the woman ...
The vagina itself does not contain mucous glands. [29] [30] Though mucus is not produced by the vaginal epithelium, mucus originates from the cervix. [8] The cervical mucus that is located inside the vagina can be used to assess fertility in ovulating women. [29]
The color of your mucus can reveal some surprising things about your health. Here's what your mucus color means, according to experts.
Mucus has trillions of microbes and is a first line of defense against microorganisms that cause infections, the NIH says. "Mucus is very helpful in terms of our immune system," Elliott says.
The mucus may be tinged with blood and the passage of the mucus plug is called bloody show (or simply "show"). As effacement takes place, the cervix then shortens, or effaces, pulling up into the uterus and becoming part of the lower uterine wall. Diagram showing an outline of the changes occurring during cervical ripening