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Fast Facts - Mirena IUCD
General Gynaecology Obstetrics 

Mirena IUCD Contraception Pros and Cons


When it comes to birth control, there a several options available. In this blog I will be discussing the Mirena and its pro’s and con’s.


The Mirena IUCD is a form of birth control that is otherwise known as a hormonal intrauterine device (IUD).  The Mirena is a t-shaped hormone-releasing IUD contraceptive that is inserted into the uterus. It works by slow release of the birth control hormone, Levonorgestrel. This hormone is released slowly and directly into the uterus over time. This prevents pregnancy by making the mucus in the cervix hostile to sperm and is effective for up to five years. The Mirena is a very effective contraceptive option if you are looking for a long term solution that is quickly and easily reversible.



  • A reduced amount of hormones required to prevent pregnancy
  • You don’t have to remember to take a tablet each day
  • Fertility returns immediately after the removal of the device
  • Helpful for endometriosis
  • Device insertion is a reasonably simple procedure usually able to be performed in the Doctor’s rooms
  • Long term reliable contraception
  • Needs to be checked by your GP/Gynaecologist only every year or two (when you have your PAP smear)



  • Side effects are rare, but the following have been reported in a small percentage of women using the device (extra body hair, anxiety, hair loss, headache and breast pain)
    • All these resolve on removal of the device
  • The risk of ovarian cysts is not reduced (unlike systemic contraceptives that prevent ovulation)
  • Bleeding and spotting in the first 3-6 months of placement.
  • Insertion might be somewhat uncomfortable, with possible cramping and light headedness.
  • Rarely it may dislodge – this is more common in breastfeeding women and younger women and those who inserted it immediately after childbirth.
  • Small risk of uterine perforation, which could lead to the need for surgery.
  • Must see your gynaecologist or GP for removal
  • Does not prevent sexually transmitted diseases


In conclusion, the Mirena can be a good alternative to other forms of birth control if you are looking for contraception that lasts longer and is easier to manage.


If you would like to discuss your medical history and find the best contraception for you , you can book a consultation with me by calling 07 3188 5000.


The above information doesn’t take the place of a medical consultation so please seek further advice if you have further concerns.

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