A small plastic and copper device that is put into the womb that works by stopping the sperm from meeting an egg. It starts working as soon as it is put in and can stay in for up to 10 years. Like the injection and the implant once itís in you donít need to think about contraception until itís removed. An IUS (Intrauterine system) is similar to the IUD but it also releases the hormone progestogen into the womb, which has the same effect as the injection and implant.

Over 99% effective.

Small chance of getting an infection during the first three weeks after insertion. For more information about intrauterine device click here