Vesicouterine Pouch

excavatio vesicouterina

The vesicouterine pouch is the peritoneal reflection between the posterior bladder and the anterior uterus in females, forming the most anterior of the two pelvic peritoneal recesses. It is shallower than the rectouterine pouch and is obliterated in lower uterine segment cesarean section where the peritoneum is reflected to access the uterine isthmus.

Anatomical Data

Boundaries & Contents

Location	Female pelvis, between the bladder and the front of the uterus
Boundaries	Upper and back surface of the bladder (front) Front of the uterus at the isthmus (back)
Contents	Peritoneal fluid

Biomechanics

Function & Actions

A shallow peritoneal fold that lets the bladder fill without dragging the uterus. It is opened in caesarean section to push the bladder down away from the lower uterine segment.

Clinical Relevance

Clinical Notes

The vesicouterine pouch is entered in cesarean section to reflect the bladder inferiorly and expose the lower uterine segment. Adhesions in this pouch from prior cesarean sections create the densely adherent bladder flap that increases the risk of bladder injury in repeat cesarean sections. Ectopic pregnancy in the vesicouterine pouch (cervicovesical ectopic) is a rare but life-threatening condition. Endometriosis in this pouch causes bladder involvement.

Pathology

Common Injuries & Conditions

Vesicouterine Adhesions

Peritoneal fusion in the vesicouterine pouch from prior cesarean section creating a dense bladder flap adherent to the lower uterine segment, increasing bladder injury risk in subsequent pelvic surgery.

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