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intrauterine device (iud)

an intrauterine device (iud) is a method of birth control that is placed inside the uterus to prevent pregnancy. hormonal iuds release a type of progestin to prevent pregnancy. copper iuds do not use hormones to prevent pregnancy.

all iuds have a plastic string that extends through the opening of the cervix into the vagina. the string allows a health professional to remove the device at your request or at the end of its effectiveness (usually 5 to 10 years, depending on the type).

the iud is very effective at preventing pregnancy.

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this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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