Steve Busalacchi reports. The State Medical Society of Wisconsin's Doctor Brian Bear, a Milwaukee gynecologist, says more patients use the plastic intrauterine devices because new research confirms that they're safe and effective. Earlier studies had linked them to infections and infertility. Put in the copper IUD, and leave it in until you're 44, and you don't have to think about anything. They're not for everyone, though.
Some women experience heavier bleeding and cramping.