Participants will be divided into 3 groups: TTNS, PNS, and placebo groups, and all participants will be given behavioral treatment. Tibial nerve stimulation will be given to the TTNS group, sacral nerve stimulation will be given to the PNS group, and sham current will be given to the placebo group. Stimulation treatments will be applied 2 days a week for 30 minutes each for 6 weeks. Participants will be evaluated before and after treatment. The parameters of urination frequency, urgency, and urinary incontinence will be evaluated with a 3-day voiding diary (BD), maximum flow rate (Qmax), time to reach maximum flow (TQmax), average flow rate, flow time (Tw), voiding time and voiding volume (VV) values will be evaluated by uroflowmetry, post-voiding residual (PVR) volume will be evaluated by ultrasound, and quality of life will be evaluated by King's Quality of Life Questionnaire (KHQ); Expanded Disability Status Scale (EDSS), Overactive bladder form (OAB-v8), Incontinence Severity Index (ISI), Neurogenic Bladder Symptom Score (NBSS) will be recorded.