They don't have to think about. And, like I said the new Mirena IUD can even make their periods lighter. And most women are thrilled. They don't want heavier periods, they want lighter periods.

An IUD is an internal form of birth control placed inside the uterus with the strings hanging from the cervix. Learn about ...

In fact, some 20% of Mirena users don't menstruate at all. "It's totally normal. The hormone in the IUD thins the ¼ lining [of the uterus] so you still ovulate, but you don't bleed," Tiel explains.

The US Food and Drug Association recently approved the Mirena IUD for an additional year of use. In clinical trials, Mirena continued to prevent pregnancy at rates exceeding 99% from 6–8 years ...