3. Overflowing from a heavy flow
It’s possible that your cup is leaking because it’s overflowing. Although Sustain period cups are meant to hold between 20ml (size 1) to 29ml (size 2) of blood, everyone’s flow is different.
If you find that your flow is super heavy on the first few days, you can empty your cup more frequently until it feels like it has started to slow down.
We recommend checking every 3–4 hours if this is the case so you don’t have any surprise leaks!
4. Placement in inner genitals
The placement of your cup in your inner genitals is another common culprit of leaks.
The cup does sit lower down than tampons, but it’s possible that your cup is sitting too low in your vagin*l canal, which is affecting its ability to properly suction.
To place it a bit higher, try inserting it while leaning forwards, and think about inserting it so that it is pointing forwards instead of upwards.
Sometimes it takes a bit of trial and error to find a way to insert it that works best for your body, so be patient with yourself if you don’t get it perfect right away.
5. Pooping
Poop. It’s every 5 year old’s favorite topic, and it’s also a reason why you might be experiencing leakage.
When you #2, your muscles put pressure on your cup (you might be familiar if you’ve ever popped/pooped out a tampon), which makes it feel like it’s going to come out, but because of the suction to your vagin*l walls ... it will not.
However, if your cup is full when these muscles are contracting, you might experience what is called a “fake leak,” which causes overflowing due to the pressure from your bowel movement.
These fake leaks are typically limited to a few drops, but to avoid them you can wear some period undies or a liner while wearing your cup.
