How In Vitro Fertilization Works

Infertility, defined as the inability to become pregnant after one year of unprotected sex, is a problem faced by nearly 6.1 million Americans -- that's nearly 10 percent of men and women of reproductive age [source: eMedicineHealth]. Because this problem is so prevalent, fertility treatments abound. Assisted reproductive technology (ART) is a group of fertility treatments that involve both the… » Full Story on HowStuffWorks