IUD, also known as a coil, stands for intrauterine device.
IUD, also known as a coil, stands for intrauterine device. - "intra" meaning within, and "uterine" meaning of the uterus. An IUD is about 1.5 inches long and it's inserted into your uterus to prevent pregnancy. They are 99% effective.
There are 2 types of IUDs, ones made out of metal, and ones that release hormones similar to those found in oral contraceptives (the Pill.) Most of the metal IUDs have a plastic T-shaped frame that is wrapped with copper. The copper is believed to have spermicidal effects, which is one reason why it works. You can wear this one for up to 10 years.
IUD's that release hormones are also T-shaped, but they are made out of plastic. The hormones make your cervical fluid thick and tacky, making it difficult for sperm to swim in, so they never make it to the egg, so therefore they can't fertilize it. You can wear this one for up to 5 years.
Both kinds of IUDs have little plastic strings attached at the bottom that hangs down past the cervix. The string is not visible and it won't cause any problems during intercourse. The string is a safety check so you can check to make sure your IUD is still in place.
An IUD has to be fitted inside and removed from the uterus by a doctor or nurse practitioner. IUDs don't stop you from ovulating, so you still get your period, but your flow may become shorter or lighter, or may even stop altogether. Some women complain that their periods are irregular when using an IUD as birth control.
Want to know how they work? Then read more