The cervix is the lower part of the uterus that connects the uterus and vagina. Menstrual blood leaves the uterus through a small opening in the cervix and into the vaginal canal. The menstrual cup traps blood near the cervix and prevents it from leaving the body. The placement of the menstrual cup depends on the position of the cervix, as it is set a few centimeters below the cervix - lower than we usually insert tampons.

For most women, the cervix lies deep in the vagina, but the menstrual cup is inserted less deeply for maximum efficiency and comfort. If the calyx is too close to the cervix, it can put pressure on the cervix and cause discomfort or even mild pain. In addition, leaks are more likely to occur in women who insert the menstrual cup too high into the vagina.

How to measure the location of the cervix?

To find your cervix, you’ll need to slide your longest finger into your vagina.
You can do this while you’re lying down, or with one leg up on the side of the bath or the toilet lid. You can also do this whether or not you have your period.
We recommend that you wash your hands well beforehand and try to relax. Then carefully slide your longest finger into your vagina.

What does a cervix feel like?

You’ll find your cervix sitting at the top of your vagina. It’s likely to be at the top of your front vaginal wall – closer to your belly button than to your spine.
To the touch, it will feel like a smooth round, raised circle with a dimple in the middle – a bit like the tip of your nose.

The height of your cervix is:

Low: When you feel your cervix with your finger inserted less than halfway or below the middle joint.

Medium: When you feel your cervix with your finger inserted into the middle joint.

High: When you feel your cervix with your finger inserted above the middle joint, or you cannot reach the cervix.

Leaks are more common for women who have inserted their menstrual cup high, close to or above the cervix, for women whose cervix is moved by a lover during menstruation, or for those who usually have the cervix low in the vagina. Therefore, if you experience a leak, you should check if the cup has rotated and if it is correctly inserted relative to the position of the cervix.