purpose: to compare the effectiveness of pelvic floor exercises, electrical stimulation, vaginal cones, and no active treatment in women with urodynamic stress urinary incontinence. patients and methods: one hundred eighteen subjects were randomly selected to recieve pelvic floor exercises (n=31), es (n=30), vaginal cones (n=27), or no treatment (untreated control) (n=30). women were evaluated before and after completion of six months of treatment by the pad test, quality of life questionnaire (i-qol), urodynamic test, voiding diary, and subjective response. results: in the objective evaluation, we observed a statistically significant reduction in the pad test (p=0.003), in the number of stress urinary episodes (p<0.001), and a significant improvement in the quality of life (p<0.001) in subjects who used pelvic floor exercises, electrical stimulation, and vaginal cones compared to the control group. no significant difference was found between groups in the urodynamic parameters. in the subjective evaluation, 58%, 55%, and 54% of women who had used pelvic floor exercises, electrical stimulation, and vaginal cones, respectively, reported being satisfied after treatment. in the control group, only 21% patients were satisfied with the treatment. conclusion: based on this study, pelvic floor exercises, electrical stimulation, and vaginal cones are equally effective treatments and are far superior to no treatment in women with urodynamic stress urinary incontinence.