460 male patients, with symptoms of BPH were prospectively included in this study. Mean age: 60.4+/- 9.4 years. All patients had clinical examination, PSA, flow rate, TRUS, OPD cystoscopy, filling and voiding cystometry & pressure-flow studies. Patients answered an Arabic translation of I-PSS. Spearman's (r) coefficient was used. No correlation was found between individual questions of the I-PSS and objective parameters. This was the case when score of obstructive, irritative symptoms and total score were correlated to same set of objective parameters