The intrauterine device (IUD), otherwise known as the coil, is a device made from copper or plastic which is placed into the uterus as a form of contraception. Its function is to stop the sperm finding and fertilizing an egg and can also prevent any fertilized eggs attaching to the uterus lining. IUD’s made from copper have an added benefit as copper is a spermicidal (able to kill sperm).

IUD’s are nowadays 99% effective at preventing pregnancy and there are several different types available; each type staying in place for varying amounts of time (some even five to ten years). The advantages of having an IUD inserted are many: once inserted a woman can effectively “forget” about contraception, unlike the pill, for example, where they would have to remember to take it every day; it doesn’t interfere with sexual intercourse; no side effects as it is not an hormonal method; and it doesn’t increase any risk of future cancers.

IUD Intrauterine Device

Most females will have no problems with an IUD, but occasional disadvantages that may occur include: heavy, painful periods; infection of the uterus normally within the first twenty days after insertion; ectopic pregnancy risk should the female become pregnant while wearing a coil; and, damage to the womb.