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What is an IUD?

An IUD (intrauterine device)—also known as an IUS (intrauterine system)—is a small device that’s placed in a woman’s uterus by a healthcare provider to prevent pregnancy. IUDs are long-lasting, reversible, and one of the most effective birth control methods available at over 99% effective.

There are two types of IUDs in the U.S.—hormonal and hormone-free.

Learn More About Paragard

What is Paragard? Still have questions?

Paragard is a hormone-free IUD (intrauterine device) that prevents pregnancy for up to 10 years using copper.


  • Don't use Paragard if you are or may be pregnant, have fibroids, a pelvic infection including pelvic inflammatory disease (PID), get infections easily, certain cancers, unexplained bleeding, Wilson's disease,