Choosing the right menstrual disc size is one of the most important steps in achieving a comfortable and leak-free period experience. The correct fit can improve comfort, increase wear time, and help your disc stay securely in place throughout the day.
At my mimi, we offer two menstrual disc sizes designed to suit a range of body types, flow levels, and preferences.
Why Menstrual Disc Size Matters
A menstrual disc sits in the vaginal fornix and tucks securely behind the pubic bone. When positioned correctly, it collects menstrual fluid comfortably and remains in place during everyday activities.
Using the right size can help:
- Reduce the risk of leaks
- Improve comfort during wear
- Increase confidence during exercise and daily activities
- Provide longer wear times between emptying
- Make insertion and removal easier
If your menstrual disc frequently slips, leaks, or feels unstable, it may be too small. If it creates pressure or feels uncomfortable, it may be too large.
Finding the best menstrual disc size for your body can make a significant difference to your overall experience.
The my mimi Menstrual Disc Sizing Guide
We currently offer two menstrual disc sizes to suit different needs.
Small Menstrual Disc
Capacity: 32ml
Our Small Menstrual Disc is often recommended for:
- Those under 30 years of age
- People who have not given birth vaginally
- Light to medium menstrual flow
- Those who prefer a slightly smaller fit
With a capacity equivalent to approximately five regular tampons, the Small Disc offers reliable protection while maintaining a comfortable fit.
Large Menstrual Disc
Capacity: 61ml
Our Large Menstrual Disc is often recommended for:
- Those over 30 years of age
- People who have given birth vaginally
- Heavy menstrual flow
- Anyone wanting maximum capacity and longer wear time
The larger diameter and increased capacity provide additional coverage and confidence, particularly on heavier flow days.
Is Age the Only Factor?
No. Age and childbirth history are useful starting points, but they are not the only factors that influence menstrual disc sizing.
Other considerations include:
- Cervix height
- Pelvic anatomy
- Flow volume
- Previous experience with menstrual cups or discs
- Personal comfort preferences
Many people find their ideal size through a combination of these factors rather than age alone.
What If I Choose the Wrong Size?
The good news is that choosing a menstrual disc size is not permanent.
If your disc feels uncomfortable, leaks regularly, or does not stay tucked behind your pubic bone, you may benefit from trying a different size.
Most users find that a small adjustment in size can dramatically improve comfort and performance.
Tips for First-Time Menstrual Disc Users
If you are new to menstrual discs, correct insertion is just as important as choosing the right size.
For the best experience:
- Relax during insertion
- Aim the disc backwards towards your tailbone
- Ensure the rim sits behind the pubic bone
- Check that the disc feels comfortable once inserted
- Allow yourself a few cycles to become familiar with placement
Like any reusable period product, there can be a short learning curve. Most users become comfortable with insertion and removal after a few cycles.
Need Help Choosing?
If you are unsure which menstrual disc size is right for you, our team is here to help.
You can also use the my mimi Size Quiz to receive a personalised recommendation based on your age, flow, childbirth history, cervix height, and comfort preferences.
Finding Your Perfect Fit
Choosing the right menstrual disc size does not have to be complicated. Understanding your body and selecting a size that aligns with your needs is the first step towards a more comfortable and reliable period care routine.
With the right fit, a reusable menstrual disc can provide up to 12 hours of protection, reduce waste, and simplify your monthly period experience.
Ready to find your fit? Explore the my mimi Menstrual Disc collection and take our Size Quiz to discover your recommended size.
