The two varicoceles and pelvic congestion syndrome are considered conditions in the pelvic veins, which involve the gonadal veins, tributaries of The inner iliac veins, and parametrial and uterine veins in females. Pelvic congestion syndrome develops when there are variations during the framework and function from the veins from the pelvis. https://www.sgvascularctr.com/tackling-pelvic-congestion-syndrome-a-comprehensive-guide-for-singaporeans/