Functional evaluation of bladder neck disease

22 patients diagnosed as having bladder neck disease were evaluated retrospectively point of view. Urodynamic study including intravesical pressure, rectal pressure, intrinsic detrusor pressure and urine flow was performed in every case. A relation was established between the findings and the definite etiology. Two urodynamic patterns were found, one with high pressures and low voiding flow, and one with low pressures and low voiding flow. Functional differences were not found between the two etiological groups, i.e. fibrotic and idiopathic.