The vagina is a thin-walled tube which lies between the bladder and rectum. It is often called the birth canal, since it provides the passageway of delivery of an infant.
Review Date 10/14/2020
Updated by: Kelly L. Stratton, MD, FACS, Associate Professor, Department of Urology, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.