During fetal development the urachus is a tube that connects the bladder to the umbilicus. After birth, the urachus normally closes and becomes a ligament. If the urachus remains open, surgery is recommended so that bacteria or infection cannot be introduced into the bladder.
Review Date 1/31/2019
Updated by: Sovrin M. Shah, MD, Assistant Professor, Department of Urology, The Icahn School of Medicine at Mount Sinai, New York, NY. 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.