title: Varicocele and male fertility.
abstract: Over the past 25 years the association of varicocele with male subfertility has been repeatedly demonstrated and the beneficial effect of varicocele ligation in infertile men with oligoasthenospermia has been documented. Since the precise mechanisms by which a varicocele affects spermatogenesis are still unclear, the proper approach to the management of "asymptomatic" varicoceles is controversial.
mesh_terms: D000328:Adult; D005260:Female; D049669:History, 16th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007248:Infertility, Male / Q000209:etiology* / Q000266:history; D007985:Leydig Cells / Q000502:physiology; D008297:Male; D008722:Methods; D008875:Middle Aged; D011247:Pregnancy; D012082:Renal Veins / Q000033:anatomy & histology; D012661:Semen; D013091:Spermatogenesis; D013094:Spermatozoa; D013737:Testis / Q000098:blood supply; D006113:United Kingdom; D014481:United States; D014646:Varicocele / Q000150:complications* / Q000209:etiology / Q000266:history / Q000601:surgery