<prompt> Which of the following is an absolute indication for surgery in cases of benign prostatic hyperplasia -Bilateral hydroureteronephrosisNocturnal frequencyRecurrent urinary tract infectionVoiding bladder pressures 50 cm of water  <response>: Absolute indications for surgical treatment of BPH 1 Refractory urine retention failing at least one attempt at catheter removal 2 Recurrent UTI from BPH 3 Bladder stones dt BPH 4 Renal insufficiency dt BPH 5 Large bladder diveicula secondary to BPH 6 Recurrent gross hematuria from BPH Ref : Cambells Urology 8e p1340 