Most women can wear size S or M. We usually recommend for women who have given birth vaginally to choose size M but you would need to take into account your flow. Some teenage girls will choose size M because they have a heavy flow while mothers who have had several children will be very happy with size M.
We advise you to choose your menstrual cup according to :
Dimensions of our menstrual cup:
Any questions on which size to choose? Contact us at firstname.lastname@example.org