Menstrual Cup Dangers

If you’ve got a vivid imagination or are prone to compulsive searches of the internet for any negative product reviews, you may have been put off by the idea of using period cups by some of the stories you’ve read. We’d like to set the record straight and, hopefully, put your mind at rest.

Frequently asked questions

Can I get a get an infection from a menstrual cup?

It’s extremely rare to pick up an infection from the cup itself. If anything, you’re more likely to introduce bacteria from your hands. That’s why it’s so important that you wash your hands thoroughly every time you insert or remove the cup and you sterilize the menstrual cup before using it. Read more about How to Clean Your Menstrual Cup. If you’re out and about, and you only have water and/or scented soap to clean your period cup, only use the water. You can use a menstrual cup cleaner, cup wipes or unscented soap and water when you get home.

Can I get Toxic Shock Syndrome (TSS) from a period cup?

TSS is a fairly rare bacterial infection that’s associated with (but not exclusive to) tampon use. In particular, tampons being left inside the vagina for long periods). Although there have only been two cases of TSS in connection with menstrual cup use, we recommend you limit the length of time you keep your cup inside you to 12 hours (even if your flow is very light). Even better, empty it 2-4 times a day. Read more about Toxic Shock Syndrome.

Is it dangerous to sleep with my menstrual cup in?

Not at all. One of the great things about period cups is that you can sleep soundly without having to wake up to change your pad or tampon.

Is it OK to use a menstrual cup with an IUD?

Yes, absolutely. Although there are some things you need to be aware of. Check out our article ‘Using a Menstrual Cup with an IUD’ for more information.

What if I want a poo when I’ve got the cup inside me?

Simple. You have a poo, just as you would without the cup. Just remember to wash your hands before and after you go to the toilet, in case you need to check the cup is still sitting correctly.

Do I have to avoid swimming?

No. On the contrary. Menstrual cups are ideal for swimming as everything’s inside and you don’t have to worry about any strings making an unwelcome appearance.


Hey Sayali!

Great question! Difficulty going to the restroom with your cup in can typically be avoided by repositioning the cup in your vagina.

Please don’t hesitate to reach out to us at with any other questions you may have! <3

Lunette Menstrual Mentor March 28, 2019


It’s my sixth month using Lunette cup and I love it absolutely.

Few things still bothering me:
1. I feel like it presses on my bladder and I have difficulty urinating when the cup is sitting inside.

2. At times I feel difficulty having a complete bowel movement as well due to the cup.

I will appreciate any suggestions or improvisations!

Regards- Sayali

Sayali March 28, 2019

Thanks for all the comments!

Kristine mccaddon: We’re so happy you love your Lunette!! If you feel like your cup is pressing on your bladder, please reach out to us at We have all kinds of tips and tricks on becoming a menstrual cup pro!

MUskaan: YES!!!

Nina: If you don’t have the Lunette Feelbetter Cup Cleanser or Cupwipes, we recommend you use a mild, fragrance-free, oil-free soap to wash your menstrual cup.

Lunette Menstrual Mentor February 13, 2019

I love the menstrual cup. My uterus is tilted and my cervix can sit very low. Tampons are useless and I’m allergic to pads (they are gross anyways). It did cause me some incontinence, but I’m giving it another try.

Kristine mccaddon February 06, 2019

Can I use it at night time….???

MUskaan March 15, 2018

Can I use vagisil women’s cleanser to wash my menstrual cup? It may not be correct but my thinking is if a cleanser is gentle and good enough for intimate areas, is it okay to use for menstrual cups?

Nina January 22, 2018

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