Objective: This study was carried out to evaluate the impact of coital incontinence on health-related quality of life (HRQOL) in women with lower urinary tract symptoms. Methods: A total of 180 women with sexual activity were evaluated. To obtain HRQOL assessments, patients were asked to fill out the Bristol Female Lower Urinary Tract Symptoms and the Medical Outcomes Study Short Form (SF-36) questionnaires. Results: The coital incontinence group had more frequently symptoms including urgency, urge incontinence, bladder pain, stress incontinence, unpredictable incontinence, nocturnal incontinence, reduced stream, and stopping flow than the no coital incontinence group. The frequency of incontinence and volume of leakage were also higher in the coital incontinence group than the no coital incontinence group. All symptom questions regarding sexual matters and quality of life except cutting down on fluid were more frequent in patients with coital incontinence than those without coital incontinence. Of the eight domains in the SF-36 questionnaire, five domains, namely, Physical functioning, Role-physical functioning, Social functioning, Role-emotional functioning, and Mental health were significantly different between the two groups. When comparing the Bristol Female Lower Urinary Tract Symptoms scores in the two groups, the scores in all domains except Voiding symptoms in the coital incontinence group were significantly higher than those in the no coital incontinence group. Patients with coital incontinence had more HRQOL impairment than those without coital incontinence. Conclusions: Our study reveals that more emphasis should be placed on coital incontinence in the terminology of urinary incontinence.