Bladder Neck Obstruction, also known as obstruction of bladder neck or vesicourethral orifice, is related to prostatic hyperplasia, benign and urethral stricture. An important gene associated with Bladder Neck Obstruction is KLK3 (Kallikrein Related Peptidase 3), and among its related pathways/superpathways are Signal Transduction and Sympathetic Nerve Pathway (Neuroeffector Junction). The drugs Alfuzosin and Doxazosin have been mentioned in the context of this disorder. Affiliated tissues include prostate and smooth muscle, and related phenotypes are normal and cardiovascular system