Parametrical analysis of uroflowmetry test results to identify urological disorders particularly to distinguish men who have low urinary tract disorder/benign prostatic hyperplasia from those who have overactive bladder. Primary urine flow dynamic parameters and secondary urine flow dynamic parameters are calculated. Patient's urological disorders can be assessed by comparing the primary and secondary urine flow dynamic parameters with a library or database of comparable data derived from healthy or normal individuals as well as comparable data derived from individuals afflicted with specific urological disorders. A predictive model of lower urinary tract function disorders can be developed from existing reference primary and secondary urine flow dynamic parameters. The model allows for complex analysis and objective disease prediction.