DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
IUD contraceptive. Endoscopic view of threads to an IUD (intrauterine contraceptive device) in the cervix (neck of the womb) of a 40 year old woman. An IUD is a piece of plastic or metal that is placed inside the uterus, through the cervix, and inhibits pregnancy by preventing fertilised eggs from embedding in the uterine wall. The threads do not go into the uterus with the rest of the IUD, as they enable the device to be easily removed from the body.
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