FAQs

Is it safe to use the MCUK with an IUD or IUS (coil)?

We know that there are MCUK users who are happily using their menstrual cup alongside an IUD/IUS (coil).

However, there have been some instances where an IUD/IUS has become dislodged when using the devices together, possibly due to anatomical factors (e.g. a low cervix), usage issues (e.g. wearing the MCUK too high) or simply that the IUD/IUS has been naturally rejected by the body. One in twenty IUD/IUS will be expelled, most commonly, in the first 3 months after the device has been inserted. These expulsions happen most frequently during menstruation.

If you are thinking about using the menstrual cup alongside an IUD/IUS you may wish to discuss this with your doctor, nurse, or gynecologist first.

If you have decided to use both devices together then please consider the following information:

  • There should always be a space between the MCUK and the cervix. If you have a low sitting cervix there may not be enough room for your cup to sit safely and work effectively alongside your IUD/IUS. If you are uncertain where your cervix sits or you need further information please contact the Advice Team.
  • Place the MCUK low in the vagina and ensure you have an adequate seal (read more about MCUK positioning).
  • Always release the seal before removing your menstrual cup.
  • After each period, check you can still feel the IUD/IUS strings. If you cannot feel them or think that your IUD/IUS has moved or is causing/has caused you pain, use another form of contraception such as a condom until you have had your IUD/IUS checked by a doctor or medical professional.

If you’re still unsure, or would like more information about using the MCUK with an IUD/IUS, please email our Advice Service.

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