Overview Hernia Surgery Urinary Retention Status: Unknown status Trial end date: 2020-01-27 Target enrollment: Participant gender: Summary Investigating whether pre-operative treatment with a selective alpha1-adrenoceptor antagonist affects the likelihood of male patients developing post-operative urinary retention following hernia repair. Phase: Phase 4 Details Lead Sponsor: Memorial Health University Medical CenterTreatments: Tamsulosin