IUDs are extremely effective in preventing pregnancy, and they are safe for the right women. They are easy to use because there's nothing to remember, and they don't change your normal cyclic hormonal pattern.

However, unlike some methods of birth control, IUDs offer no protection from STDs. The devices can also cause cramping, pain and extra bleeding when first inserted. They can be expensive: They can be expensive, with the cost of the device typically exceeding $100 and insertion fees starting at $200. And if the doctor has little experience with inserting IUDs, the effectiveness of the device could be compromised.