If you don’t know yet what is a menstrual cup you can read my introductory article here. Today I want to explain you how do you choose the right one. The available menstrual cups, in fact, have differences in size, capacity and firmness. To get the perfect one you have to consider age, height of the cervix, pelvic floor, children and menstrual flow.
Age and children
These are the two indicators that you usually find on a menstrual cup’s website. Menstrual cups are divided into size 1 and 2 or size Small and Large. Sizes 1 and S are recommended to women that are younger than 30 years old and that have never had children. Sizes 2 and L instead are recommended for women older than 30 years old and/or women that have had children. It is a rule that usually can work. But, it sometimes happens that a woman, that is younger than 30 and have never had children, have for example a heavy flow. So size L is more suitable. Or a woman that have had children has a very low cervix. In this case size S is more comfortable for her. Besides we have to remember that cups of the same size but different brands have a different length. Here come into play the other points that help us in our choice.
Height of the cervix
To measure the height of the cervix put a finger in your vagina. Depending on how deep you have to go before touching your cervix, you’ll see if it is low or high. This is referred to as the “knuckle rule”. If you only insert your first knuckle, you have a low cervix. A petite menstrual cup is what you need. If you insert your second knuckle, it is average. In this case, almost every cup is ok for you. And if you insert your third knuckle or can’t reach it, it is high. You’ll need a menstrual cup that is longer.
Pads often make you believe that you have a heavier flow. But surely you have an idea about how heavy your menstrual flow is. So, according to it these are the appropriate cups:
- Very light flow: cups under 20 ml
- Light flow: cups under 25 ml
- Medium flow: cups from 20 to 30 ml
- Heavy flow: cups from 25 to 30 ml
- Very heavy flow: over 30 ml
Menstrual cups have also a varied firmness. There are soft cups, average cups and firm cups. It is important to know if you have a strong or a weakened pelvic floor in order to decide which cup to buy. Because a soft cup, for example, could be squeezed by a strong pelvic floor and you’d have leaks because it couldn’t open. While a firm cup may apply pressure on the bladder and be uncomfortable if you have a weakened pelvic floor. So if you have a strong pelvic floor get a firm or average cup. And if you have a weakened pelvic floor get a soft cup.
On the website putacupinit you can find a menstrual cup comparison. You’ll find size, capacity and firmness of various menstrual cups.