Menstrual cups 101 folding techniques for every cervix height

Walk into any Chemist Warehouse in Sydney or a Priceline in Brisbane and you'll find shelf after shelf of menstrual cups stacked beside the pads and tampons. Australian shoppers have embraced reusable period products faster than almost anywhere else in the world, partly because our climate rewards anything that cuts down on landfill and partly because a single cup costs roughly the same as three or four boxes of tampons. Brands made locally, like JuJu in Melbourne and the classic Keeper from South Australia, sit alongside international favourites such as Lunette and Saalt.

Cervix height is the quiet variable that decides whether a cup glides in comfortably or pinches, leaks, or simply refuses to unfold. Most people who try one and give up do so because they chose a cup that was too long for the space it had to occupy, or because the fold they used made insertion feel like pushing a small bowl through a keyhole. The good news is that a little self-knowledge and the right fold changes the experience entirely.

What follows is a practical guide to matching fold techniques with cervix height, including a few you can practise with your hands before your next cycle. Knowing where your cervix sits is the first step, and the measuring your vulva guide walks through the same kind of at-home exploration that helps you choose a cup in the first place.

Finding your cervix height before you fold

Cervix height is measured by how far your finger reaches inside the vaginal canal toward the small firm nub at the back. Most healthcare practitioners in Australia classify it loosely as high, medium, or low, which corresponds to roughly three or more centimetres inside, around two to three centimetres, or under two. Squatting in the shower with a clean finger is the easiest way to find it.

A high cervix gives you plenty of room for a longer cup, though you need a reliable seal because the cup can ride higher and miss the blood pool. A low cervix demands a shorter cup and a fold that opens cleanly without pushing the cup deep into the canal. Medium cervixes sit comfortably with most cup lengths, which is why many starter kits sold through Australian pharmacies lean toward medium options.

Knowing your own height also takes the guesswork out of removal. A cup that sits high will need a longer stem or a different fold to bring it within reach. If you can feel your cervix easily with the tip of your finger, you probably have a low to medium cervix, which is a useful starting point.

Punch down and tulip folds for a high cervix

When your cervix sits high, the fold matters more than the cup shape because insertion depth is rarely the problem. The punch down fold, also called the C fold, presses one side of the rim flat against the body of the cup, creating a narrow tip about the width of a tampon. It opens reliably once it clears the vaginal opening, which makes it a strong choice for anyone whose pelvic floor tends to grip the cup during insertion.

The tulip fold is a small piece of origami that produces an even slimmer profile. You push the rim down on both sides, then fold the whole thing in half, and finally tuck the folded edges back to create a tulip shape. It's slightly more fiddly than the punch down but it slips past a tense pelvic floor more easily, which is why so many people at cup workshops in Melbourne and Perth swear by it for first insertions.

Longer-bodied cups from brands like Lunette or Saalt pair well with these folds, and a firmer silicone helps the cup spring open once it's past the pubic bone.

Seven fold and origami fold for a medium cervix

A medium cervix is the easiest to fit, which is why this is the height most product guides default to when recommending cups. The seven fold, sometimes written 7-fold, presses one corner diagonally down to create a pointed tip with two small ridges along the side. The ridges catch the vaginal walls as the cup travels inward and help it spring open evenly once released.

The origami fold, sometimes called the triangle fold, is a more compact version of the punch down. You push one side down to form a triangle, then fold the triangle in half, creating a flat profile that many people find easier to grip. It works well with both soft and firm silicone, which makes it helpful if you're switching between cup brands.

These folds balance ease of insertion with reliable unfolding. A medium cervix rarely needs an aggressive fold to get the cup deep enough, and it tolerates slightly wider tips without discomfort. First-time cup users often start with the seven fold because it is the easiest to teach.

Labia fold and triangle fold for a low cervix

A low cervix leaves very little room for a long cup, so shorter bodies with rounded bases are usually the better fit. The labia fold is technically a soft fold rather than a true origami shape: you press the rim flat with your thumb while gently squeezing the cup against your outer labia, then guide it in with the fold still pressed. The shape is forgiving if your fingers aren't cooperating, and it works well with cups that have a softer stem or no stem at all.

The triangle fold, sometimes called the half-punch down, presses the rim into a triangle and holds it with the thumb for insertion. It's slightly narrower than the full punch down, which suits a shorter vaginal canal where the cup needs to open quickly without being pushed too far. Many people with a low cervix find that a cup without a stem, or with a stem they trim down, prevents the cup from sitting awkwardly against the vaginal opening.

Vulva proportions and cervix height often correlate, so the same techniques that help you choose a cup also tell you whether a longer or shorter body will suit your anatomy.

Matching firmness to fold and flow

Firmness matters almost as much as fold and length. Soft cups, like the original Keeper or the softer Saalt models stocked in Australian health food stores, are comfortable for sensitive bladders but they need a fold that pops open decisively. Firm cups, such as the slightly stiffer Lunette or some European imports, unfold on their own but can feel intrusive if your pelvic floor is tight. Summer in northern Australia also plays a role, because a softer cup can feel like it's collapsing when you're dehydrated and active.

Pelvic floor strength changes how a fold performs. A strong pelvic floor will grip a punch down fold and keep it from opening, which is why people who do regular Pilates or pelvic floor exercises sometimes need the tulip or origami fold instead. A weaker pelvic floor benefits from a firmer cup that holds its shape against gravity.

You can rotate folds across your cycle too. Heavier flow days often welcome a punch down because the cup opens easily and stays sealed. Lighter days near the end of your period sometimes feel better with a softer fold that doesn't tug at all. If you want to learn more in person, the upcoming workshops and gatherings listed on the site include cup-fitting sessions in several Australian cities where you can practise folds with a teacher.

Fold techniques matched to cervix height

• High cervix users typically find the punch down or tulip fold most comfortable, paired with a longer-bodied cup and firmer silicone.
• Medium cervix users usually do well with the seven fold or origami fold, which balance narrow insertion with steady unfolding inside the canal.
• Low cervix users often prefer the labia fold or a compact triangle fold, matched to shorter cups without prominent stems.
• Practise each fold with water-based lubricant on a clean rim before your period so your hands learn the shape.
• Try at least two folds during the same cycle, because your pelvic floor responds differently depending on hydration, stress, and where you are in your flow.
• Trim a long stem only after you have worn a cup for a full cycle, so you can see how the cup sits before making permanent changes.

A cup that fits feels like a quiet, dependable tool, and a fold that matches your cervix height is the part of the ritual that disappears into the background. Bodies shift from month to month, hormones shift your pelvic floor tone, and the cup that worked last spring may feel off next winter. Treat the fold as something you can change rather than a fixed instruction, and let the cup serve the cycle rather than the other way around. The point is not to master a single technique but to remember that you have several, and that choosing between them is a small act of listening to your own body.