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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? Back to all Questions
Jump to Important Safety Information Important Safety Information
  • 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, or a copper allergy. IUDs, including Paragard, have been associated with an increased risk of PID. Continue reading
  • Pregnancy with Paragard is rare but can be life threatening and cause infertility or loss of pregnancy. Continue reading