Why does my disc leak or feel uncomfortable?

Leaking

Leaks typically occur due to incorrect positioning, a full disc, anatomical factors, or a phenomenon called "autodumping." Here are the four most common reasons this happens and how to solve them:

Incorrect Positioning

The disc must sit in the vaginal fornix, covering the cervix and tucked behind the pubic bone. If it is in front of the cervix or not fully unfolded, the flow will bypass the disc.

How to tell: Leaking occurs shortly after insertion (even on light days), or the disc feels uncomfortable/shifted.
The Fix: Reinsert the disc, angling it toward your tailbone. Use a clean finger to feel if your cervix (which feels like the tip of your nose) is tucked inside the bowl. Gently sweep your finger around the rim to ensure it has fully opened and isn’t twisted.

A Full Disc

Our disc holds 50ml (about six tampons), but heavy flows can fill it faster than expected.

How to tell: Leaks happen after several hours of wear on heavy days, or you feel a "full" sensation.
The Fix: Empty the disc every 3–6 hours on your heaviest days. Pair it with period underwear as a backup while you learn your flow's rhythm. Note: If you consistently fill the disc in under 2 hours, consult a healthcare provider to rule out menorrhagia (abnormally heavy periods).

Anatomical Factors

Variations like a tilted uterus, a very high/low cervix, or a less pronounced pubic bone can make it harder for the disc to stay tucked.

How to tell: The disc slips out of place during activities like coughing, sneezing, or exercise.
The Fix: Experiment with different positions (squatting vs. leg up) to find a deeper tuck. If the disc consistently fails to stay behind the pubic bone, your anatomy might be better suited for a menstrual cup, which stays in place via suction.

Autodumping

Autodumping is when the disc temporarily untucks due to pelvic muscle contractions while you are on the toilet, releasing some fluid.

How to tell: You notice blood in the toilet while urinating, but the disc doesn't leak into your underwear during daily activities.
The Fix: This is actually a "feature" for many! If it happens, simply use a clean finger to push the rim back behind the pubic bone before leaving the restroom. Propping your feet on a stool (like a Squatty Potty) can also help keep the disc in place.

Discomfort

When inserted correctly, you shouldn't feel any discomfort with the disc. It may take some time for your body to adjust to it. However, if you are experiencing persistent discomfort, it usually comes down to one of the following:

Adjustment Period: Your body might just need a few cycles to get used to the feeling. It often helps to insert the disc while fully relaxed (like squatting or sitting on the toilet) and using a bit of water or water-based lubricant to make insertion smoother.
Cycle Changes: Your cervix can sit lower or higher depending on the day of your cycle, which affects how the disc sits. On heavier days, the disc might also simply need to be emptied more frequently.
Positioning: Unlike a cup, the disc sits higher up in the vaginal fornix, tucked behind the pubic bone. During insertion, try angling it downward and back toward your tailbone. If the disc isn't tucked completely under your cervix, it can cause leaks or minor discomfort.
Sizing: It is possible the current size is a bit too large for your anatomy. We're working hard on developing a smaller version, which we hope to launch by the end of 2026.

Additional tips

If you’re new to the disc, practice inserting it the first time when you don't have your period to build confidence without the mess.
Always rinse your disc every 4–12 hours and boil it for 3–5 minutes between cycles to keep the silicone in top condition.
Check for tears or cracks. Damaged silicone loses the tension needed to stay tucked behind the pubic bone.
Test the disc at home before wearing it for high-intensity exercise or swimming, or wear an extra protection layer like period underwear or a liner.

Still having trouble? Reach out to our support team at support@allmatters.com for further guidance.