Benign prostatic hyperplasia: typically in elderly gentleman complaining of longstanding progressive voiding symptoms (hesitancy, slow stream, intermittency, straining to void, terminal dribble) with minimal storage symptoms; risk factors: advanced age, severity of lower urinary tract symptoms, increased prostate volume, decreased urinary flow rate, PSA > 2.5 smooth enlarged non-tender prostate with palpable median sulcus and mobile rectal mucosa over prostate on rectal examination; Confirm BPH with (1) uroflowmetry, (2) ultrasound bladder for intravesical prostatic protrusion, and increased post-void residual urine volume