It is a highly effective, small, T-shaped device containing a copper thread or cylinders which is placed in the uterus by your healthcare provider. The IUD releases copper ions which immobilizes the sperm and makes it really hard for them to move around in the womb, but does not stop the ovaries from making an egg each month. On the rare occasion a sperm does get through, the copper stops a fertilized egg from implanting itself to the lining. The IUD, once inserted into the womb, can stay in place for up 5 or 10 years or until you decide to remove it.
The IUD is inserted into the woman’s womb through her vagina by a well-trained healthcare provider where it stays for up to 5 or 10 years depending on the type or brand. You can of course change your mind at any point and your healthcare provider will remove it for you. After the IUD is removed, the contraceptive effect wears off quickly and you can become pregnant as rapidly as women who have used no contraceptive at all.
Reference: http://www.fpa.org.uk/contraception-help/your-guide-contraception Accessed on September 6, 2016
Stays in place for up to 5 or 10 years (depending on the type), but can be removed any time
At 99%, it’s one of the most effective contraceptive methods
Does not interrupt sex
Not affected by other medications
Can be used as emergency contraception if inserted within five days after unprotected sex
An alternative to those affected by the hormone estrogen
Can be used when breastfeeding
Fertility returns to previous levels once the IUD is removed
Requires a trained healthcare provider for insertion and removal
May cause cramps and/or irregular bleeding
Some women experience headaches, tenderness and acne after an IUD is fitted
Small risk of infection at insertion and of expulsion
Does not protect against HIV infection (AIDS) and other sexually transmitted infections (STIs)