Benign prostatic hyperplasia (BPH) is a common disease in middle aged and elderly men; and one of the most common etiology of lower urinary tract symptoms (LUTS). It may cause urinary urgency, frequency, nocturia, dysuria, and complications such as urinary tract infection, bladder stones, and hydronephrosis that sharply affect the quality of life (QOL). Because of the increasing aged population and advancements in diagnostic tools, the incidence and importance of BPH have increased. Therefore, prompt and effective interventions are necessary for treating BPH. It can be treated with pharmacotherapies and with surgery. Usually, surgery is needed to achieve satisfactory outcomes when patient is refractory to medical management.

Monopolar transurethral resection of prostate (M-TURP) is considered the gold standard for the management of bladder outlet obstruction due to BPH. Its newly introduced modification, bipolar TURP (B-TURP), promises to overcome its most prominent shortcomings, namely bleeding and dilutional hyponatremia. Literature is conflicting regarding merits of B-TURP over M-TURP, so we have decided to conduct this study.