Choosing a Menstrual Cup Size: FAQS (More Faqs »)


Do all menstrual cups offer a one size fits all cup?

No. There are a few menstrual cup brands that do offer a one-size fits all cup, however most brands do offer different sizes for the purpose of accommodating young women, older women, virgins, women who have a short cervix, etc… and providing them with the best options for comfort, performance, effectiveness, and ease of use.
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How do I choose the right size of menstrual cup for me?

Each female is different and has different requirements to meet her period protection needs. When looking for the perfect size of menstrual cup, you should utilize the charts and size guidelines which are noted on that specific cup brand. The charts tell you the guidelines such as age, flow, fitness level, number of vaginal births and more that each size will accommodate and work best for. Some menstrual cup brands websites also provide questionnaires to help you determine the right size for you.
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Does the size of the menstrual cup influence its holding capacity?

Yes. Different sizes of menstrual cups vary by cup, stem, bell diameter, length, and capacity. Often the larger sizes offered by menstrual cup manufacturers boast a higher holding capacity to cater to more adult women who have had live vaginal births and that experience heavier flows. Depending on your circumstances, you may want to consider the holding capacity of a menstrual cup when selecting a size.
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Does it matter which size I choose in a menstrual cup?

Yes. Choosing the wrong size of menstrual cup can negatively impact the cup’s comfort level, effectiveness, and ease of use (insertion and removal.) By choosing the most appropriate size in a menstrual cup you are assuring yourself a better overall experience of the menstrual cup.
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If I have had no children and am 35 which size of cup should I choose?

Most menstrual cup size guidelines suggest that a woman over 35 choose a larger sized cup (even though she has had no vaginal births), because of her menstrual flow, physical stature, and age variances. However, you may need to try out a size or brand of menstrual cups to determine if this condition suits your needs best. As some women over 35 have been known to prefer smaller cup size in some brands of menstrual cups over other brands.
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If I am a virgin what type and size of menstrual cup should I use?

Menstrual cup brands that offer at least 2 sizes such as the Diva Cup and that are softer and squishier than others are ideal for virgins in the smallest size available. Virgins and young women who have just started their period can use menstrual cups safely in the smallest size for light-medium flow. Also, the softness of certain brands of menstrual cups should be considered when choosing the best size for a virgin and to ensure comfort. But it should be noted that the use of a menstrual cup can tear the hymen.
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I have had 3 children by vaginal birth and I am 25. which menstrual cup size will work for me?

Although most menstrual cup size guidelines would suggest a woman under 25 to use a smaller size cup, the vaginal births are a good indication that you experience a heavier flow and would best be served with a larger size. For those menstrual cup brands that offer a small, medium, and large size- you could also consider a medium in your situation.
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Do different brand sizes vary even though they are the same size?

Yes. Every cup design is different in diameter, size, length and more according to the brand of cup. You may opt for a small size in one brand and buy a new cup in s small size in another brand and notice huge differences. Not all menstrual cups are made alike, it is best that when you find an ideal size in a cup you stick with that cup or look for a similar cup that offers the same specs and size criteria.
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I have a light flow and have no children which cup size is best?

If you have a light flow, a small sized menstrual cup with a lighter holding capacity and smaller design features would work best for you (especially since you have had no vaginal births.) However, if you are in the 30-35 range you may find a medium/large cup will still serve your light flow and offer you a better fit.
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What is the best size for someone who has a heavy flow?

You may want to look at a menstrual cup with a decent holding capacity. However your age, amount of vaginal births, fitness level, and other factors need to be considered before you opt for a larger menstrual cup size that may not be as comfortable. Many smaller sized menstrual cups do boast ample holding capacities that will accommodate a woman with a heavy flow. So do consider ALL of the guidelines when selecting a cup size.
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I have a high cervix, which menstrual cup sizes are best for me?

For women with a high cervix, it is important to consider a menstrual cup’s design features overall and not just the size. Determine what guidelines in the chart you meet for the appropriate size first (ie. Age, births, etc), and then decide if there is a specific brand or cup design that offers a longer stem, an oblong shaped bell, and a narrow diameter. Women with high cervixes tend to prefer the long tab stems for no-hassle removal purposes.
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I have a short cervix what menstrual cup size should I opt for?

Many women with short cervixes use the small sized-menstrual cups, but this is case by case. Some menstrual cup size charts do make suggestions of cup sizes for women with short cervixes or a shallow birth canal. Your best bet for finding the right size (besides trial and error) is to find a small cup that features a stem that can be trimmed so that the stem does not poke out of the vagina.
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I purchased a menstrual cup in a large size, because I have had 2 children vaginally and am over 35, why is it too big?

The sizing criteria that each menstrual cup brand designates to help consumers choose the right size is not always 100% fool-proof and is only a guideline. If you have chosen a certain size in a menstrual cup and find that it does not fit you properly, you may have to choose another menstrual cup size or go with a different brand for the best user experience. The same factors apply when purchasing a menstrual cup that appears to fit too loosely and does not seal properly.
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