What are the causes?
Pelvic varicose veins are often secondary to the left ovarian vein dilatation and reflux.
The varicose veins in the pelvic area can only arise from genetic factors. However, they are more common after pregnancy, because the body needs to dilate the veins in that area to move all the necessary blood to gestation.
Besides, hormones produced during pregnancy also dilate all the veins of the woman’s body.
The valves inside the pelvic veins stop functioning and the venous blood accumulates in the pelvic veins, resulting in stasis dermatitis and ectasia or increasing of the pelvic veins – varicose veins.
The pelvic venous congestion syndrome causes are many.
It can result from obstructive anatomic abnormalities, pathologies that originate secondary venous congestion, hormonal factors, hereditary factors, pelvic surgeries, varicose veins preceding or multiparity.
The absence of ovarian veins valves, 15% on the left and 6% on the right can explain the greater frequency of pelvic varicose veins in the dependency of the left ovarian veins, in comparison with the right one, which is rare.