The retroinguinal space (or Bogros' space) is the

extraperitoneal space The extraperitoneal space is the portion of the abdomen and pelvis which does not lie within the peritoneum. It includes: * Retroperitoneal space, situated posteriorly to the peritoneum * ''Preperitoneal space'', situated anteriorly to the periton ...

situated deep to the

inguinal ligament The inguinal ligament (), also known as Poupart's ligament or groin ligament, is a band running from the pubic tubercle to the anterior superior iliac spine. It forms the base of the inguinal canal through which an indirect inguinal hernia may dev ...

. It's limited by the fascia transversalis anteriorly, the peritoneum posteriorly and the iliac fascia laterally. This

preperitoneal space The extraperitoneal space is the portion of the abdomen and pelvis which does not lie within the peritoneum. It includes: * Retroperitoneal space, situated posteriorly to the peritoneum * ''Preperitoneal space'', situated anteriorly to the periton ...

communicates with prevesical

space of Retzius Retropubic space is a potential avascular space located between the pubic symphysis and the urinary bladder. The retropubic space is a preperitoneal space, located behind the transversalis fascia and in front of peritoneum . Other names for the ...

. It is divided into two compartments. The medial compartment contains vasculature including the femoral artery and vein. The lateral compartment allows for passage of the iliopsoas (primary hip flexor), allowing attachment to the femur, along with the femoral nerve.Inguinal Hernia
from the Department of Gastrointestinal Surgery at Saint Pierre University Hospital. September 2010

References

Pelvis {{Anatomy-stub