Contraception for Teenagers contraception method | Page 18

Intrauterine Device
An intrauterine device (IUD) is a small device that is
inserted into the womb via the cervix. Different
devices work in different ways. Some stop the sperm
or egg from surviving in the womb, where as others
prevent the egg from implanting. Some IUDs release
chemicals, where as others don't. Home made IUDs
can be traced back to the ancient Greeks, but it
wasn't until the 1960s that medical IUDs were
approved. (Fpa.org.uk 2010)

(Funbuzztime.com 2015)