Objective:Overactive bladder (OAB) may be interrelated with chronic inflammation. The aim of this study was to assess the role of neutrophillymphocyte ratio (NLR) levels in men and women with OAB symptoms.Methods:Between January 2017 and February 2018, a total of 157 subjects (77 OAB patients and 80 controls) were included in the study. The subjects divided into two groups. Group 1=OAB patients and group 2=normal controls. Patients with active urinary tract infections, previous pelvic surgery or neurogenic patients were excluded. The enrolled both patients and control group were questioned using the 8-item OAB questionnaire (OAB-v8) complete blood count and serum C-reactive protein (CRP) levels were measured in the first visit.Results:The mean NLR was 1.73±0.67 in patients and 1.48±0.75 in control groups (p