The Mirena intrauterine system (IUS) combines a coil with a hormonal reservoir that emits a form of progesterone. Essentially, you will find the benefits of the birth control pill as well as those of a coil in the Mirena system. It prevents implantation of any fertilized egg by thinning the uterine lining, and makes cervical mucus not receptive to transporting sperm. Some women stop ovulating when they have a Mirena coil fitted. Mirena may be the right choice of birth control for you if:
- You are looking for a long-term contraceptive that is effective in multiple ways. One benefit of Mirena is that you can basically forget about it after placement.
- If you have suffered from heavy periods in the past, or currently. The Mirena system was found to reduce heavy periods in most women.
- If you are not opposed to hormonal birth control, or have had bad experiences with it in the past.
Mirena is not suitable for you if:
- You have large uterine fibroids. The device can be expelled from your body.
- You are planning to start trying to conceive relatively soon. Unlike methods like the birth control pill, the Mirena requires a separate removal procedure that may not appeal to you if you are only looking for short-term contraception.
- If you have had an ectopic pregnancy before, discuss your situation with your doctor before deciding on a Mirena coil.
- You are prone to experiencing side effects from hormonal birth control methods.