1. Infertility : Causes, incidence, and risk factors  (Trust Mark: Doctor-Reviewed)
Causes of infertility include a wide range of both physical and emotional factors. A couple's infertility may be due to female factors, male factors, or both: FEMALE INFERTILITY: Female infertility may be due to: Problems with a fertilized egg or ...• Reviewer: Linda Vorvick, MD, Family Physician, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; Susan Storck, MD, FACOG, Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Redmond, WA; Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

2. Infertility  (Trust Mark: Doctor-Reviewed)
Infertility is the failure of a couple to conceive a pregnancy after trying to do so for at least one full year. In primary infertility, pregnancy has never occurred. In secondary infertility, one or both members of the couple have previously conc...• Author: Belinda Rowland, Teresa Norris