Pelvic congestion syndrome

[Michiko]

Pelvic congestion syndrome is long-lasting (chronic) pain in the lowest part of the torso (pelvis) caused by accumulation of blood in veins of the pelvis, which have widened (dilated) and become convoluted.
Pelvic congestion syndrome seems to be a common cause of chronic pelvic pain (pelvic pain lasting more than 6 months). Pain occurs because blood accumulates in veins of the pelvis, which have dilated and become convoluted (called varicose veins). The resulting pain is sometimes debilitating. Estrogen may contribute to the development of these veins.
Many women of childbearing age have varicose veins in their pelvis, but not all of them have symptoms.