Menstrual Disc Size Guide: How to Find Your Fit

Key Takeaways:

• Cervix height is your starting point: It's the biggest factor in picking your menstrual disc size, so it's worth checking before you choose.
• Small vs. Regular: The Small Saalt Disc tends to suit a lower cervix and lighter flow, while the Regular tends to suit a medium to high cervix and heavier flow.
• You're not locked in: Some people switch sizes as their flow changes, or keep both on hand for different days of their period.

You did it! You finally listened to that voice inside your head and decided to make the switch to a reusable menstrual product, and now you need to figure out your menstrual disc size.

Here's the short answer: the Saalt Menstrual Disc comes in Small and Regular, and your cervix height is the main deciding factor. It can still seem a bit overwhelming to figure out what size is right for you, so let’s make it simple!

Below, we get into how to check your cervix height, how the Small and Regular stack up side by side, and what to do if your first pick isn't quite the one.

First, Why Consider a Menstrual Disc?

Menstrual discs are fantastic tampon alternatives. They can be worn for up to 12 hours, which means you don’t have to worry about frequent changes throughout the day.

Other perks of switching to a disc may include:

• Holds more fluid than tampons and some menstrual cups
• Doesn’t rely on suction like period cups do, which some IUD users prefer
• Can last you up to 10 years
• Auto-dumping capability
• Mess-free period sex

How to Check Your Cervix Height

Your cervix is the narrow, lower end of your uterus at the top of your vaginal canal, and how high or low it sits affects which disc size will fit comfortably and stay put.

It’s also Saalt's starting point for picking a disc size.

According to Cleveland Clinic, your cervix’s location and texture change throughout your menstrual cycle, so we recommend measuring your cervix throughout your period.

For example, some users may find their cervix starts higher at the beginning of their period, then drops as their period continues. Knowing where your cervix tends to sit is also super helpful information when it comes to inserting your disc.

Here's a simple self-check:

With clean hands, gently insert a finger into your vagina and notice where you reach your cervix (it feels a bit like the tip of your nose).

Reaching it at your first knuckle usually means a low cervix, the second knuckle means medium, and past that (or not reachable at all) means high. Since it can shift, checking during your period gives you the most useful read.

Want the full walkthrough? Our guide on how to measure your cervix height covers it step by step.

Other Tips for Finding Your Menstrual Disc Size

Cervix height gets you most of the way there, but a few other things can help you find your menstrual disc size:

1. Assess your flow: Consider how heavy your flow is. If you usually need to change your super tampon or pad every couple of hours, the Regular Disc might be better.
2. Consider your experience: Saalt's size chart points first-time disc users to the Regular, and suggests the Small for teens and young adults.
3. Pelvic floor strength: If you practice Kegel exercises or know you have strong pelvic floor muscles, you might be comfortable with the small size.

Learn more: menstrual cup vs. disc

Once you’ve factored in your cervix height, flow, experience, and pelvic floor strength, you’re ready to find the perfect period disc match!

Saalt Disc Small vs. Regular: Size Comparison

Saalt offers two disc sizes: Small and Regular. Here's a quick menstrual disc size comparison of the specs:

Spec	Saalt Disc Small	Saalt Disc Regular
Diameter	56 mm	66 mm
Capacity	30 mL	50 mL
Tampon equivalent	3-4 regular tampons	5-6 regular tampons

The bottom line of this menstrual disc size comparison is that the Regular holds about 20 mL more and is 10 mm wider.

Some users may be able to use both sizes throughout their period, while others may find one size is perfect for their period. That wider rim can help some people who have trouble keeping a disc in place, while the Small can feel easier to insert.

For the full breakdown, check out the Saalt Disc size chart.

Who Should Use the Small Disc?

The small size is generally recommended for:

• Individuals with a lower cervix
• Teenagers and young adults
• Individuals with a lighter menstrual flow
• Individuals who have struggled with larger insertion products in the past

Who Should Use the Regular Disc?

The regular size is typically recommended for:

• Individuals with a medium to high cervix
• New disc users and people who have trouble keeping a disc in place
• Those with a heavier menstrual flow

How to Insert Your Saalt Disc

You have your Saalt Disc now (yay!), now what’s next? The Saalt Disc fits comfortably in your vaginal fornix (aka the wider space around the cervix) and is held in place by its rim.

Since the disc is made from soft, flexible silicone, insertion is pretty simple: pinch the disc in half, slide it back and down, then tuck the front rim behind your pubic bone.

When inserted properly, it will rest naturally; you likely won't even notice it’s there.

If you are struggling to insert your disc, try watching this helpful video from one of our Saalt Coaches, showing tips on how to properly insert the disc. When it’s time to take it out, here’s how to handle removal mess-free.

 

 

Find Your Perfect Fit With Saalt

Switching to a menstrual disc can feel like a big change, but it’s a step toward a more sustainable and comfortable period experience. Once you know your cervix height and flow, it gets a lot easier to find your menstrual disc size.

Saalt’s menstrual discs are designed with comfort, anatomy, and you, the customer, in mind. We want you to have a happy period.

Whether you’re looking for tampon alternatives, fewer disposable products, or just a more eco-friendly option, Saalt’s here to help you achieve period bliss!

Ready to find your fit? Shop the Saalt Disc in Small or Regular.

Menstrual Disc Size FAQs

What is the best menstrual disc size for beginners?

There isn't one best size for every beginner, since cervix height and flow matter most. When it comes to the Saalt Disc Small vs. Regular, Saalt's size chart recommends the Regular Disc for new disc users and anyone who has trouble keeping a disc in place, while the Small is often a better match for teens, young adults, and people with a lower cervix.

What if my menstrual disc size is wrong?

Leaks, slipping, or discomfort can be signs your disc isn't the right fit. Sometimes, the best way to find your fit is through a bit of trial and error. Don’t be discouraged if you need to try a couple of different sizes before finding your perfect match. Saalt has a generous guarantee; reach out to our coaches at sayhey@saalt.com if you need assistance or a replacement.

How do you know if a menstrual disc is too big?

A disc that's too big may feel noticeable or uncomfortable, press on your bladder, or be hard to tuck behind your pubic bone. If it still feels off after a few tries and you've ruled out placement, the Small may be a better match, especially if you have a lower cervix.

Do menstrual discs empty when you pee?

They can. Some disc users notice self-emptying when bearing down on the toilet nudges the rim and lets some menstrual fluid drain out before the disc settles back into place. Not everyone experiences it, and the timing varies, so a little trial and error is part of getting to know your disc.

How do you know your disc is inserted correctly?

A disc is in the right spot when it sits in your vaginal fornix, just below your cervix, with the front rim tucked up behind your pubic bone. Most people can’t feel it at all once it’s placed correctly, and it shouldn’t leak or slip. If you can still feel it or notice leaking, try pushing the disc back a little further and re-tucking the front rim.

Is switching from a cup to a disc tricky?

It can take a little practice, and plenty of cup and disc users swap between the two depending on the day. The biggest difference between a menstrual disc vs. a cup is where it sits. A menstrual cup may sit lower and use suction, while a disc sits higher and stays put with its rim. Many cup users find it clicks after a period or two.

How is a reusable disc different from a disposable one?

A disposable menstrual disc gets tossed after one use. A reusable period product like the Saalt Disc is a soft silicone disc made to collect menstrual fluid, and it can last up to 10 years. Empty and wash it at least every 12 hours, and sanitize it between periods.

Medical Disclaimer: The information provided in this article is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. Always seek the advice of a physician, gynecologist, or other qualified healthcare provider with any questions you may have regarding a medical condition, vaginal health, or the compatibility of reusable menstrual products with your body. Never disregard professional medical advice or delay seeking it because of something you have read on this website. If you think you may have a medical emergency, immediately contact a doctor or call your local emergency services.