Overview
Urine is the liquid waste product excreted by the kidneys. It is stored in the bladder until it is emptied out through the urethra.Review Date 1/30/2017
Updated by: Jennifer Sobol, DO, urologist with the Michigan Institute of Urology, West Bloomfield, MI. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.