Terms first
Start with plain definitions of rim, stem, holes, seal, diameter, length, capacity and storage pouch language.
MonthlyCup terminology desk
Menstrual cup words, made measurable.
Choosing a menstrual cup gets easier when the language is clear. This site explains the product terms, measurements and care phrases you may see when comparing cups — without turning them into promises, rankings or medical advice.
DiameterWidth across the rim
CapacityOften stated up to holes
Total lengthCup plus stem
37 mmMini diameter listed in MonthlyCup’s published guide.
43 mmNormal diameter listed by MonthlyCup.
47 mmPlus diameter listed in the guide.
12 hManufacturer instruction: empty according to flow and no later than 12 hours.
A glossary for comparison, not pressure.
Menstrual cup pages often use compact product language. Menskop.com slows those terms down so you can understand what each word describes before you compare any model.
Measurements next
Learn the difference between cup length and total length, and why a capacity figure should be read with its measuring point.
Care wording last
Read manufacturer-style instructions such as boiling before first use, drying fully and storing with air circulation.
How to use this site
Separate the number from the meaning.
A millimetre value is not a fit guarantee. A capacity value is not the same thing as a personal flow recommendation. A stem is a feature, not a handle to pull against resistance. The glossary helps you read those details in context.
- Compare measurements rather than relying on age or childbirth as a size rule.
- Look for where capacity is measured, such as up to the holes.
- Follow the supplied instructions for care, emptying and storage.
- Refer product-specific questions to current MonthlyCup support rather than guessing from old product copy.
Source boundary
Product examples on this site are based on MonthlyCup manufacturer information retrieved for this guide on 2026-09-07. The source pack is not independent clinical evidence and should not be read as medical advice.
- No invented tests or customer quotes.
- No guaranteed fit or guaranteed leak-prevention claims.
- No unsupported environmental or lifespan calculations.
Quick definitions you will see often.
These are short versions. The glossary pages go deeper with examples and source notes.
Diameter
The width across the rim of the cup, usually stated in millimetres.
Cup length
The length of the cup body without the stem, if the product page separates it from total length.
To holes
A capacity value measured up to the small holes near the rim, as stated in MonthlyCup’s model guide.
Seal
The contact created after insertion. MonthlyCup instructs users to release the seal before removal rather than pulling the stem alone.
Boil before first use
A manufacturer instruction: follow the supplied instructions and boil before first use and between periods as instructed.
Air circulation
MonthlyCup’s guide says to dry fully and store with air circulation.
Ready to compare actual MonthlyCup models?
Use the live MonthlyCup guide for current product context and model information. This glossary helps with the words; the guide holds the current comparison path.