The intrauterine system (IUS) is:
What is it?
It is a small T shaped plastic device that is put into the womb.
There are three different kinds of IUS or hormone coil available in Ireland: Mirena, Kyleena and Jaydess.
It can only be inserted and removed by a specially trained doctor.
How does it work?
The IUS contains progestogen, an artificial form of the hormone progesterone.
It works by:
- stopping the sperm from reaching the egg
- thinning the lining of the womb to help prevent a fertilised egg from settling (implanting) in the womb
It is important that you talk to a doctor who will assess what contraceptive option is best for you.
Advantages
- It does not interrupt sex.
- It protects you for 3-6 years depending on the device. But you can get it taken out sooner.
- If inserted after the age of 45 it may stay in place until the menopause.
- Periods often become lighter, shorter and less painful.
Disadvantages
- You may have irregular bleeding or spotting in the first 6 months.
- It does not protect you against sexually transmitted infections.
