Inclusion Criteria:  Men aged ≥50 or <80 years AND On combination therapy (alpha-blocker and 5-ARI) ≥12 months AND IPSS score (≤30% decrease from baseline) AND Prostate volume (≤35% decrease from baseline)  Exclusion Criteria:  Suspected prostate cancer (PSA density >0.15 ng/ml/cc) requiring specific management On-going prostatitis or urinary retention Acontractile detrusor Neurogenic lower urinary tract dysfunction Urethral stenosis Patient unable or unwilling to provide written informed consent