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An intrauterine device (IUD) is a small, plastic, T-shaped device that is inserted into the uterus to prevent pregnancy. IUDs contain copper or the hormone levonorgestrel (LNg). Plastic strings tied to the end of the IUD hang down through the opening of the uterus (cervix) into the vagina.
| By: | Healthwise Staff | Last Revised: May 13, 2010 |
| Medical Review: | Sarah Marshall, MD - Family Medicine Kirtly Jones, MD - Obstetrics and Gynecology | |
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