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Compare the sizes

Two sizes, because bodies aren’t one-size

See the real capacity and diameter difference between Small and Large, then use your body, flow and birth history to choose with more confidence.

Tap Small or Large to compare

Both sizes are body-safe, medical-grade silicone and designed for suction-free, comfortable protection.

32 ml capacity

Small is often the better starting point if you are under 30 or have not given birth vaginally.

Changes with size

Diameter 66 mm
Holds about 5 tampons

Same either way

Wear time Up to 12 hours
Design Suction-free
Lifespan 5+ years
Still unsure? Find my size - 60-second quiz →

Sizing guidance is general. Your flow, cervix height and pelvic sensitivity can also affect which size feels best. Tampon comparison is approximate and for general reference only.

Questions, answered

Menstrual disc FAQs

Clear answers about how a menstrual disc works, how to use it and what to expect when making the switch.

What is a menstrual disc?

A menstrual disc is a soft, flexible period product that collects menstrual fluid rather than absorbing it. It sits high in the vaginal fornix, just below the cervix, and tucks behind the pubic bone to stay in place. The reusable my mimi menstrual disc is made from medical-grade silicone and is designed for up to 12 hours of wear, depending on your flow.

Learn more in our complete guide to menstrual discs.

How do you use a menstrual disc?

Wash your hands, pinch the disc into a narrow shape and insert it horizontally towards your tailbone. Guide it back until the rear rim sits beneath your cervix, then tuck the front rim securely behind your pubic bone. When positioned correctly, the disc should feel comfortable and remain in place as you move.

Follow the full step-by-step menstrual disc instructions or read our beginner insertion guide.

How is a menstrual disc different from a menstrual cup?

A menstrual disc sits higher in the vaginal canal, just below the cervix, and stays in place behind the pubic bone without relying on suction. A menstrual cup sits lower in the vaginal canal and generally uses suction to create a seal. A disc can also be worn during penetrative period sex, while a cup cannot.

Compare the fit, placement and benefits in our menstrual disc versus menstrual cup guide.

How long can you wear a menstrual disc?

A my mimi menstrual disc can be worn for up to 12 hours, depending on your flow. On heavier days, you may need to empty and rinse it sooner. Always remove, empty and clean the disc before reinserting it, and do not wear it beyond the recommended time.

Read more about long-lasting menstrual disc protection.

How do you remove a menstrual disc?

Sit over a toilet or stand in the shower, relax your pelvic muscles and hook a finger through the my mimi loop tab or beneath the front rim. Gently untuck the disc from behind the pubic bone, then pull it out slowly while keeping it as level as possible. Empty the contents, rinse and clean the disc before reinserting or storing it.

See the illustrated removal steps in our how-to-use guide.

Are menstrual discs safe?

Menstrual discs are considered safe when they are used and cleaned as directed. Wash your hands before insertion and removal, use a silicone-safe cleanser, follow the recommended wear time and replace the disc if it develops tears, cracks, persistent odour or changes in texture. Seek medical advice if you experience pain, unusual symptoms or have concerns about using an internal period product.

Review the practical safety guidance in Are Menstrual Discs Safe?

Can you use a menstrual disc with an IUD?

A menstrual disc does not rely on suction, so many people choose one when they have an IUD. However, every body and IUD placement is different. Check that you can locate your IUD strings, avoid pulling on them during removal and speak with your healthcare professional before use if you are unsure.

Read our guide to using a menstrual disc with an IUD.

Can you sleep, swim and exercise with a menstrual disc?

Yes. When the disc is positioned correctly behind the pubic bone, it can be worn while sleeping, swimming, working and exercising for up to 12 hours, depending on your flow. If you feel pressure, slipping or leaking, remove the disc and check that it is fully inserted and securely tucked.

Learn more about sleeping with a menstrual disc.

Can you have sex while wearing a menstrual disc?

A menstrual disc sits high beneath the cervix, leaving the vaginal canal more open than a menstrual cup or tampon. This means it can be worn during penetrative sex to help reduce period mess. A menstrual disc is not a contraceptive and does not protect against pregnancy or sexually transmitted infections.

Explore our guide to mess-free period sex with a menstrual disc.

How do you clean and store a menstrual disc?

Rinse and wash your disc after removal with clean water and a mild, fragrance-free cleanser that is safe for silicone. Sanitise it between cycles according to the product instructions, allow it to air-dry completely and store it in a breathable pouch or clean container. Avoid fragranced soaps, antibacterial wipes and products that may damage silicone.

Follow our complete menstrual disc cleaning guide.

Which my mimi menstrual disc size should you choose?

The Small my mimi disc holds 32 ml and is commonly recommended for people under 30 who have not given birth vaginally, or anyone who prefers a smaller fit. The Large holds 61 ml and is commonly recommended for people over 30, those who have given birth vaginally or anyone wanting greater capacity. Your anatomy, cervix height, flow and comfort also matter, so these are guides rather than strict rules.

Use the my mimi menstrual disc size quiz for personalised guidance.

customer reviews

Amelia

Hobart, Australia

Using the my mimi menstrual disc has been a great experience. I love the way it feels!

Mia

Hamilton, New Zealand

The my mimi menstrual disc is excellent! It’s perfect for myheavy flowdays and very comfortable. The water-based lubricant makes everything smoother

Sloane

Perth, Australia

I’ve tried a couple of different brands, but had problems with the one size fits all. Have been using the mimi for a couple of periods and had no leaks, no iritaion. Happy that I switched.

Sally

Carlton, Australia

I bought the double disc bundle with the menstrual disc cleaning tablets. The reason why i bought the double disc is because i got a small disc and a large disc. During my period my cervix moves around, so having the two size period discs has been amazing. No leaks! Really like the tablets, very easy to use. Highly recommend.

Grace

Wellington, New Zealand

I’m thrilled with the my mimi Next Bundle. It includes the menstrual disc, gentle foaming cleanser, and water-based lubricant. All essentials in one package for a great price!

Elizabeth

Newmarket, Canada

The my mimi menstrual disc is very comfortable. It doesn’t leak, and the gentle foaming cleanser keeps it clean. I’m impressed with the quality