Which of the following is the most common cause of delayed urinary tract obstructive symptoms after TURP?

Ans is 'a' i.e. Bladder neck stenosis "The risk of developing an urethral stricture is 2.6% after open prostatectomy, 3.8% after TURP and 1.7% after TUIP (4-11). The risk of bladder neck contracture is 1.8% after open surgery, 4% after TURP and 0,4% after TUIP. "- European Association of Urology 2006