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Menstrual cup size guide

For all hesitating soon-to-be Your KAYA’s cup users :)

7 minreading time • Text: Dominika Olchowik

Illustration of Your KAYA menstrual cup Jarek Danilenko

Illustration: Jarek Danilenko

Access to the variety of period products that help us handle the menstrual flow is a mixed blessing. Although we have many different options to choose from, it’s impossible to pick one suitable for everyone. Certain factors need to be taken into consideration to maintain menstrual hygiene while keeping the body in a healthy condition. Using a menstrual cup might be a little intimidating at the beginning, but there are many advantages of choosing it. Not only is it a great way to be more environmentally conscious, but it also provides you with a safe user experience and imperceptible protection. 

What is a menstrual cup?

  • Menstrual cup is a reusable period hygiene product 
  • It is usually made out of rubber or medical grade silicone, which makes it flexible and easy to wash out after every usage 
  • Inserted into the vagina, it collects the period blood rather than absorbs it — thanks to that, the cup is less likely to cause internal bacterial infections
  • Before inserting the cup into your body, wash your hands thoroughly and relax! 
  • Fold the menstrual cup in half with one hand — the rim should be facing up
  • Insert the cup into your body, the same way as you would put a tampon in 
  • If you choose the right size and firmness, it should feel like you have nothing inside

Here in Your KAYA, we try to make things as simple as possible — we offer our medical grade menstrual cups in only two sizes: small and regular. It still doesn’t make it easier to pick the right cup size and we completely understand this confusion. All women are different and so are their vaginas — no wonder why “which cup size should I get?” and “what if I choose the wrong size?” are one of the most frequently asked questions we receive from our customers.

Now is the time that we try our best to dispel all of the doubts!

How do I know which menstrual cup size to get?

Every body is different, unique, and has its own menstrual needs.

The basic criteria for choosing a cup are very simple:

  • The small cup is tailored for people who have rather light flow during their period, never have given birth nor used a menstrual cup before. 
  • The regular size cup is for those who have a heavy flow during menstruation, have given natural childbirth, and/or are used to using a menstrual cup with this diameter.

But as always, the more you get into it, the more complicated it becomes. Many people fit into both criteria at the same time and it doesn’t mean that an adolescent with a scanty menstrual flow and someone who’s age is 30+ and has given birth can’t wear the same cup size.

We prepared some more specific sizing guidelines — here are the precise information about our cup sizes:

  • Small - capacity: 18.5 ml (0.63 fl. oz.), diameter: 4.1 cm (1.61 in), length without the stem: 4.7 cm (1.85 in), length with the stem: 7.4 cm (2.91 in)
  • Regular - capacity: 27 ml (0.91 fl. oz.), diameter: 4.6 cm (1.81 in), length without the stem: 5.2 cm (2.05 in), length with the stem: 7.4 cm (2.91 in)

The same length of cups with the stems might be a little confusing — it’s quite long, isn’t it? Don’t worry, it is made only for the sake of comfort and making it easy to locate the cup inside the vagina. If the stem sticks out or hurts, you can trim it or even remove it altogether. You will still be able to easily take the cup out!

Which menstrual cup will match with my flow?

We think that the most crucial things to take into consideration while choosing a menstrual cup are its size and your menstrual bleeding flow. If you know how many tampons you usually use during your period, you might find useful our small comparison.

The capacity of our small-sized cup matches the absorbency of:

  • 4 mini tampons (6-9 g) 💧💧
  • 3 regular absorbency tampons (9-12 g) 💧💧💧
  • 2 super-absorbent tampons (12-15 g) 💧💧💧💧

On the other hand, the capacity of the regular menstrual cup holds the same amount of period blood as:

  • 6 mini tampons (6-9 g) 💧💧
  • 4.5 regular absorbency tampons (9-12 g) 💧💧💧
  • 3 super-absorbent tampons (12-15 g) 💧💧💧💧

We are not able to compare our cups with sanitary pads absorbencies as they don’t have their sizes standardised. However, if you change a pad or a high absorbency tampon every 1-2 hours (or even more often) then the regular-sized menstrual cup would be the right choice. It holds more blood, therefore you will save some time by emptying it less frequently. On the other hand — if you change your mini/regular tampon 3-4 times a day, the small menstrual cup would be enough for 9-12 hours!

Remember that 12 hours is the maximum time of holding a menstrual cup inside your vagina canal. Keeping it in for too long might cause some unpleasant infections.

How to find and measure my cervix height?

And why is it important?

The length of the cup (without the stem) is important especially for those who have a low cervix. Properly inserted menstrual cup should be put inside of the vagina entirely and placed under the cervix to collect the blood it’s releasing (cup can be right under or much below the cervix). This is why it is essential to measure your cervix height.

In the middle of the menstrual cycle the position of the cervix might change, whereas during the period, when the measurements should be done, it’s at its lowest. 

But how do you check where it is?

  • The best way is to simply put your finger (washed and moistened if needed) into your vagina and search for the cervix by following the anterior wall of the vagina (from the pubic mound side, not the back). It should feel like a tip of the nose — it is much smoother than the vagina’s wall.
  • When you feel it, try to check how high it is by comparing your finger to the ruler. This will help you decide whether it’s higher than the length of the chosen cup. If you cannot find it, you probably have a high cervix, therefore both of our cups would be suitable for you! Women with a low cervix might have a harder time looking for a menstrual cup than someone who has a high cervix, as most of the cups might be too long for them. 

If you don’t want to wait for the period to measure the cervix, don’t worry, it’s not necessary. Based on our experience, we can assure you that our small-sized menstrual cup fits the needs of almost every customer that chooses it, therefore the majority of people have their cervixes 4.7 cm above the vaginal opening.

Menstrual cup vs active lifestyle

Both of our menstrual cups are soft and fit especially those who are less physically active. People who live vigorously and do sports like yoga, pilates, horse riding, or pole dancing have stronger pelvic floor muscles, therefore they might need menstrual cups that are firmer than ours. In their case, softer cups may have problems with opening and sucking in, which means they can be less effective and cause some unwanted spotting. It is still a very personal thing, and people who do not work out aggressively usually praise our products. Also, thanks to their softness, our cups are a perfect fit for any woman at the beginning of her menstrual cup journey!

Which menstrual cup is the best for beginners?

To sum up — while choosing the menstrual cup size, take into consideration these crucial factors:

  • The heaviness of your period flow
  • Height of your cervix
  • Your lifestyle: whether you’re active or rather sedentary

We also have very simple yet useful advice for many people: if it’s your first time using a menstrual cup and you’re torn up and scared of picking the wrong size, choose the universal model, which is the small one. Some of our customers were surprised with the regular cup size or even experienced some discomfort due to its larger diameter and the rim. This is why a small menstrual cup is the safest option to choose if you’re not sure! Remember — if you have any other doubts regarding your age, menstrual flow, or cup sizes, consult a medical specialist. It is always a good idea, especially for the beginners or someone who’s just started menstruating.

If any questions about menstrual cups or our other products pop up in your mind, feel free to share them with us via [email protected], our Facebook profile, Instagram, or chat at our website! We have our finger on the pulse and are always ready to help you!

Sources:

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