New to menstrual discs and cups?
First, determine the proper fit
Lumma™ is proud to be the only company in the world that offers three sizes of menstrual discs.
For optimal sizing, compare the length of your finger to a ruler before measuring, noting which portion of your finger measures 1½ inches (typically from the tip to the 1st knuckle) and 2½ inches (typically from the tip to the 2nd knuckle).
Since your cervix can change positions during your period, we offer a free cup or disc with each purchase. We recommend getting two sizes to help keep you covered year-round.
Which size disc is right for you?
How to use your disc
Which size cup is right for you?
Most menstrual cup manufacturers only offer one size. We offer ten, because all of our customers are unique, and so are their periods. Let's take you through it.
H = high cervix
M = medium cervix
s = short cervix
B = has given natural childbirth*
+ = heavy flow
*Cups for those who have given natural childbirth are 0.4 inches (1 cm) wider than their counterparts.
How to use your cup
Sterilizing your Lumma products
Simply boil in water for three minutes. Your disc or cup will be sterile, clean, and good to go.