posterior scrotal veins posterior scrotal veins the posterior scrotal veins are veins of the scrotum in men. they accompany the posterior scrotal arteries. they drain into the vesical venous plexus. they help to drain blood from part of the scrotum. posterior scrotal veinsdetailsdrains fromscrotumdrains tovesical venous plexusarteryposterior scrotal arteriesidentifierslatinvenae scrotales posterioresta98a12.3.10.022mta25035fma75396anatomical terminology structure the posterior scrotal veins accompany the posterior scrotal arteries. they lie superficially in the scrotum. they drain into the vesical venous plexus. function the posterior scrotal veins help to drain blood from part of the scrotum in men.