Varicocele and male infertility: current concepts and future perspectives.

This Special Issue of is fully dedicated to the thematic area of Varicocele, which has been one of the most controversial issues in the field of Urology, Andrology, and Reproductive Medicine. Recognized as a clinical entity for over a century, varicocele from Latin: (dilated vein) and from Greek: (tumor) still elicits heated debate among scientists and clinicians on an arguable negative effect on male fertility and gonadal function and has fueled thousands of scholarly articles since its first report in the 18 century.