Why is My Menstrual Cup Leaking?
Menstrual Cup Troubleshooting
Find Out Why Your Menstrual Cup Is Leaking
A leaking menstrual cup does not always mean cups are not right for you. The cause may be insertion, capacity, or the way your cup's diameter, height, and firmness fit your body. Start with what you are experiencing and narrow down the likely cause.
First, Is Your Cup Actually Leaking?
A small amount of blood shortly after insertion can be residual blood that remained below the cup. Continued leaking, a cup that shifts position, or repeated leaks during wear are better clues that something needs attention.
Also check the simple things first. Make sure the cup has opened after insertion, the rim is not folded, and the cup is not already full. If those basics look right and leaking continues, fit may be the next thing to consider.
What Does Your Leak Look Like?
My cup opens, but I still leak around it
If the cup appears open but does not stay securely positioned, diameter may be worth reviewing. A cup needs enough width to create a dependable fit with your body.
My cup leaks during exercise or will not stay open
Pelvic floor pressure can compress some cups during wear. If your cup leaks during exercise, tends to collapse after insertion, or will not stay fully open, a firmer cup may resist that pressure better.
My cup moves down and then leaks
If your cup shifts downward during wear and leaking follows, it may not be sitting securely enough. Diameter, overall fit, and where the cup settles in your body are worth reviewing.
My cup feels too long and leaks
If a cup is too long for the space available, it may sit too low or be pushed out of its best position. A shorter cup may sit more securely and help reduce leaks caused by poor positioning.
My cup leaks before it is full
If your cup leaks well before it reaches capacity, the problem is more likely related to positioning, fit, or how securely the cup is sitting than to capacity alone. Check that it has opened fully, then review diameter, firmness, and height if the problem keeps happening.
My cup works well until it fills
If your cup stays secure and only leaks when it is full, the problem may be capacity rather than fit. Emptying more often or choosing a higher-capacity option may make more sense than changing firmness or height.
What If Your Current Cup Is Simply the Wrong Fit?
Different kinds of leaks can point to different fit issues. MeLuna gives you separate choices for diameter, height, firmness, and handle style, so you can adjust the part that may be causing the problem.
If Your Cup Opens but Still Leaks, Look at Diameter
Cup size names are not standardized from brand to brand. A "small" from one company may not have the same diameter as a "small" from another.
MeLuna offers four diameters, so you can compare actual measurements rather than relying on the name printed on your current cup.
See the MeLuna Size Chart
“I've been wearing my regular cup for many years, but I am in peri now and have noticed it seems to slip and spill a bit. I got the XL and it definitely feels more secure.”
Verified MeLuna USA customer review
If Your Cup Gets Compressed, Look at Firmness
If your cup opens during insertion but later gets compressed by pelvic floor pressure, cup firmness may matter more than diameter.
MeLuna Classic is the starting firmness for most users. MeLuna Sport is firmer and is designed to resist compression from stronger pelvic floor muscles.
Compare Classic and SportIf Your Cup Feels Too Long, Look at Height
A cup can have the right diameter and still be uncomfortable because the body is too long for your available space. MeLuna Shorty cups are designed for a low cervix or for people who find standard-height cups too long.
Both Classic and Sport firmness are available in Shorty and Standard heights, so choosing a shorter cup does not force you into one firmness.
Explore Low Cervix Cups
Already Using Diva, Saalt, Flex, Lena, or Another Cup?
Your current cup can give you useful information. Instead of matching its size name, compare its actual diameter and height with MeLuna. Then use your experience with its firmness and fit to decide what you want to change.
Not Sure Which Fit Variable Is Causing the Problem?
Find My MeLuna
Answer a few questions about your body and cup experience to narrow down your starting choice.
Take the Cup QuizSwitching Brands?
Compare your current cup's dimensions with MeLuna before choosing a new size.
Compare CupsReady to Choose?
Browse MeLuna cups by height, firmness, diameter, and handle style.
Shop MeLuna CupsWorried About Choosing the Wrong MeLuna?
Your first cup can give us useful information even if the fit is not quite right. The MeLuna USA Guarantee gives eligible customers access to fit help and reduced-price replacement options when a different diameter, height, firmness, or handle may work better.
Still Trying to Figure Out Why Your Menstrual Cup Leaks?
Start with the symptom that sounds most like yours. If the cup opens but does not stay secure, review diameter. If it gets compressed, review firmness. If it feels too long or too hard to reach, review height.
