['There is a high incidence of varicocele or dilatation of the spermatic vessels associated with reflux in the male population varying, according to statistics, from 4.5 to 30.7%. Among the numerous hypotheses put forward to explain infertility in approximately 50% of patients with varicocele, it has recently been shown that there is an increased concentration of noradrenalin in the spermatic vessel which might be responsible for chronic arterial vasoconstriction affecting the gonads, leading to endothelial hyperplasia and consequent infertility.', 'In this study the authors have evaluated the bilateral flow of spermatic arteries at the level of the scrotum in patients with varicocele and in the healthy (varicocele-free) population with normal and hypospermatogenesis.', 'In all groups and in the absence of other major pathologies (including arterial hypertension), no significant differences were found in systolic peak velocity (SPV) in relation to the presence or otherwise of varicocele and the degree of reflux. Mean SPV ranged between 3.5 and 4 cm/sec in patients with hypo- and/or normal zoospermia both in the varicocele and healthy population.'] Do [ Volocimetric evaluation of spermatic vessels with echo color doppler in patients with idiopathic varicocele ]?