BackgroundInguinal hernia repair is a commonly performed surgical procedure performed in adult males. Urinary retention following surgery is a known complication likely due to the adrenergic over-stimulation of smooth muscles in the bladder neck and prostate. This effect could potentially be mitigated by the use of alpha-blocker medications. A meta-analysis of randomized control trials (RCTs) was performed to analyse the evidence behind the use of alpha-blockers in the prevention of post-operative urinary retention (POUR). MethodsA comprehensive search of PubMed, Embase, MedLine and Scopus was undertaken adhering to PRISMA guidelines. RCTs using alpha-blockers as a single point intervention were included. Data were analysed using a random-effects model. Risk of Bias (ROB) was assessed according to Cochrane guidelines. ResultsSeven RCTs including 680 patients were included. The use of alpha-blockade reduced the incidence of urinary retention requiring catheterization (OR:0.23, 95% CI:0.07–0.70, p:0.009). No serious side-effects of alpha-blockers were reported. ConclusionAlpha-blockers are a safe and effective intervention to reduce the incidence of urinary retention following inguinal hernia repair surgery.