Abstract Introduction and hypothesis To assess the impact of coital incontinence (CI) on health-related quality of life (HRQoL) and quality of sexual function (QSF) in women with urodynamic stress urinary incontinence (SUI). Methods Women were recruited for this cross-sectional study from among 289 patients with lower urinary tract symptoms, underwent clinical and urodynamic evaluation. Of these 289 women, 127 sexually active women with SUI completed the King’s Health Questionnaire (KHQ) and the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ), of whom 97 were enrolled for the study. The study group comprised 53 women with CI occurring ‘sometimes’, ‘usually’ or ‘always’, and the control group comprised 44 women without CI. Total and individual domain scores were evaluated. Results CI was reported by 65.35 % of the women. The frequency of CI was correlated with lower educational level and higher body mass index (r=0.22andr=0.23, respectively; p= 0.01). The KHQ results showed significantly lower HRQoL in women with CI in all domains (p