Editing Varicocele (section)

== Pathogenesis ==

* '''The primary factors are believed to be:'''
*# '''Increased venous pressure in the left renal vein'''
*# '''Valvular incompetence of the gonadal vein at its junction with the left renal vein'''
*# '''Collateral venous anastomoses'''
* '''The “nutcracker phenomenon” (compression of the left renal vein between the aorta and superior mesenteric artery) may account for the varicocele in some boys'''
* '''A tall, thin body habitus (low BMI) is associated with varicoceles in adolescents and adults'''
* '''<span style="color:#ff0000">Solitary right varicoceles are rare. Should one be of abrupt onset, renal pathology such as tumour should be considered</span>'''