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Birth Control: IUD (Intrauterine Device)

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An intrauterine device (IUD) is a small T-shaped device. It is placed in the uterus by your healthcare provider. The IUD prevents pregnancy by changing the environment inside the uterus. There are 2 types of IUDs: Hormone-releasing IUDs and hormone-free IUDs. Your healthcare provider can talk to you about which type is best for you.

Pregnancy Rates

  • Typical use: 4%

  • Perfect use: Less than 1%

Using an IUD

  • Your IUD insertion is done in the healthcare provider’s office.

  • Small strings allow you to check the device’s position in the uterus. Check these strings each month after your period to be sure the device is in place.

  • Depending on which kind of IUD you have, it can stay in place for up to 5 years or up to 10 years.

Pros

  • Provides long-term, but reversible, birth control.

  • No interruption to lovemaking.

  • Easy to use. Very little to remember to do.

  • Low pregnancy rate.

  • Can be easily removed by your healthcare provider.

  • Hormone-releasing IUDs may reduce heavy menstrual bleeding.

Cons

  • May cause side effects such as cramping, backache, spotting or bleeding, and longer, heavier periods.

  • Increased chance of tubal pregnancy if conception does occur.

  • Slight increase in chance of pelvic inflammatory disease (PID) at time of insertion.

  • Does not protect against STDs.

The IUD may not be for you if…

  • You have not had children and plan to have them in the future.

  • You have had a tubal pregnancy, painful periods, or PID.

  • You have more than one sex partner.

  • You have a condition, such as fibroids, that changes the shape of your uterus.

Publication Source: Balaskas, J Easy exercises for pregnancy, 1997.
Date Last Reviewed: 3/15/2006
Date Last Modified: 3/15/2006