title: Epidemiology of varicocele.
abstract: Varicocele is a common problem in reproductive medicine practice. A varicocele is identified in 15% of healthy men and up to 35% of men with primary infertility. The exact pathophysiology of varicoceles is not very well understood, especially regarding its effect on male infertility. We have conducted a systematic review of studies evaluating the epidemiology of varicocele in the general population and in men presenting with infertility. In this article, we have identified some of the factors that can influence the epidemiological aspects of varicoceles. We also recognize that varicocele epidemiology remains incompletely understood, and there is a need for well-designed, large-scale studies to fully define the epidemiological aspects of this condition.
authors.forename: Bader
authors.initials: B
authors.lastname: Alsaikhan
authors.forename: Khalid
authors.initials: K
authors.lastname: Alrabeeah
authors.forename: Guila
authors.initials: G
authors.lastname: Delouya
authors.affiliation: Division of Urology, Department of Surgery, McGill University, Montreal, Québec, Canada.
authors.forename: Armand
authors.initials: A
authors.lastname: Zini
mesh_terms: D006801:Humans; D007248:Infertility, Male / Q000453:epidemiology / Q000209:etiology; D008297:Male; D014646:Varicocele / Q000150:complications / Q000453:epidemiology*