How to Measure Your Cervix: A Very PACII How-To

How to Measure Your Cervix PACIIMeasuring your cervix is as glorious as it sounds. It’s the best. It’s fantastic. We promise.

Okay, we may be using alternative facts here, but it does play an important role in figuring out what menstrual cup might work the best for you. While it is just one piece of the puzzle (check out our popular quiz for the rest) it plays a major role in comfort. And comfort is one of the best parts of switching to a cup.

The basic idea is what is sometimes referred to as ‘the knuckle rule’. First knuckle: low cervix. Second knuckle: average. Third knuckle or can’t reach? high!

To better demonstrate, we decided to make a very PACII how-to. We hope you enjoy it and as always, if you have any questions, leave a comment here, on the video, in our Facebook group, or basically anywhere else you can track us down. We’ll do what we can to help!

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Put A Cup In It

Menstrual education with a twist by Kim Rosas & Amanda Hearn. Thanks for being here!

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7 Comments

  • I am 31 and have had 4 babies. I have the Lena cup and have tried using it twice now. I have a terrible time with it slipping down. I have to adjust it almost every hour or so but it slips down and is uncomfortable. Can anyone help me? I love the idea of a cup and really want this to work. Thanks

    • The way a cup stays in place is through creating a seal. Slippage can happen anytime a seal is broken or not made in the first place. There are many ways this can happen. Do you twist the cup after placing it as high up under your cervix as you feel comfortable? I twist mine to make sure the seal is there, or to help seal it if isn’t made yet.

      If you’ve never felt your cup seal, you may need a larger cup.

  • yeah this was a great video!
    the only thing not mentioned is prolapse!
    i think because our lifestyle isnt as active as it should be, and because women are tossed out of birth as a vessel instead of a human, most doctors miss physical symptoms of not only prolapse, but weakened muscles or diastisis!
    if you have a prolapse, that is going to push the cup around and make things wierd. obviously this video solves the problem of uterine prolapse, but the two other kinds can definitely play a role!

    i would guess if you have problems with it constantly slipping, you probably have a muscle issue / prolapse / diastisis bothering you as well.

  • Could I ask a question here?

    I am considering switching to the cup from pads. I measured my cervix height, and have come to the conclusion that my cervix is QUITE high, as I am unable to reach it at all.
    I had settled upon the small Ruby cup, which is 65 mm long, for my cup, as it can be purchased online from my own country. But now, seeing that my vagina simply seems to go on and on God knows where, I am suddenly not so sure. My alternatives are the Lily cup and the Lena cup, both of which are above 70 mm, which, I suppose, would be ideal for me. However, they are either too expensive, or do not ship to my country. I also do not prefer the large Ruby cup because of its large diameter (45 mm), since I have never used even tampons before. It also measures only about 68 mm in length.

    I have also never been sexually active.

    The small Ruby cup would be ideal for me, considering the diameter and the pricing, except for the length. I am considering purchasing it anyway. My main concern is, would using a shorter cup with a high cervix be completely inadvisable for me, and can it possibly drift too far up my so that it would be impossible to reach? I would prefer to use a Ruby cup if it is possible.

    • in my experience, your cervix might be at different heights during different parts of your period. i think mine is quite low during my period, and higher at other times.
      i dont think that it could end up so high you couldnt reach it. tho you’re probably a lucky one who may not have to trim so much of the stem if yours is indeed higher than average/normal.

      give it a try. 😉 if you dont mind that sort of thing, cups can be helpful. im not positive, but i dont think the cup has to touch your cervix, it just has to be in there enough to be comfortable and catch. it sort of creates a seal that flexes with your body, so it shouldnt be a big deal if its not up by your cervix, it should still catch whats coming out. 😉

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