The inferior gluteal veins (sciatic veins), or venae comitantes of the inferior gluteal artery, begin on the upper part of the back of the

thigh In human anatomy, the thigh is the area between the hip (pelvis) and the knee. Anatomically, it is part of the lower limb. The single bone in the thigh is called the femur. This bone is very thick and strong (due to the high proportion of bone ...

, where they anastomose with the

medial femoral circumflex The medial circumflex femoral artery (internal circumflex artery, medial femoral circumflex artery) is an artery in the upper thigh that arises from the profunda femoris artery''.'' Damage to the artery following a femoral neck fracture may lead ...

and first perforating veins. They enter the pelvis through the lower part of the greater sciatic foramen and join to form a single stem which opens into the lower part of the internal iliac vein.

References

Veins of the torso {{circulatory-stub