when it can be remove???
You can use most menstrual cups for up to 12 hours depending on how light or heavy your flow is. If you have a heavy period, then you’ll definitely need to empty your cup before 12 hours.
Since everyone’s period is different I can’t tell you an exact time to empty your cup. Getting to know your menstrual flow is key. Is your period heavy on the first day? Is it heavy the first three days? Only YOU know this. During those days, you may need to empty your cup more often, but as your period lightens up toward the end of your period, you can use it for longer before needing to empty it.
When trying to figure out how long you can use your cup before needing to empty it, I would suggest only using it for three hours and then see how much blood was collected. You can add an hour or two as needed.
Here’s some info including photos that might be useful: