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Intrauterine Device (IUD)

Brand names: Mirena, ParaGard

The IUD is a quarter-sized t-shaped device that is inserted in your uterus by a medical provider during an office visit. It may be right for you if you want to prevent pregnancy at least one year and a very effective method that is easy to use. Read more.

The IUD does not protect against HIV or STIs. Always use a condom.

Effectiveness based upon typical use.​

99% Effective
Lasts 1-10 Years
Taken Out Anytime

Are there any side effects?

Side effects may include some pain after insertion like cramping and backaches, increased spotting between periods in the first months, irregular periods in the first months (Mirena, a hormonal IUD), heavier periods and worse cramps (ParaGard, a non-hormonal IUD).


Pain relievers can usually reduce cramping and other side effects.

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