Hysterectomy is not associated with de-novo urinary incontinence: A ten-year cohort study

To determine prevalence, incidence proportion, and changes of urinary incontinence (UI) 10-13 years after hysterectomy compared to two control groups.

A longitudinal cohort study of 661 women with follow-up for ten years. Originally, 866 women answered a questionnaire on continence status preoperatively. Ten years postoperatively the queries were repeated in 371 with a hysterectomy, 89 with laparoscopic cholecystectomy (LC), and 201 with transcervical endometrial resection (TCRE). Significant incontinence was UI at least once a week. The main outcome measures were prevalence and incidence proportions of UI.

The overall prevalence of stress UI ten years after surgery was 23% compared to 12% preoperatively. Urge UI was prevalent in 12% compared to 5% preoperatively. Incidence proportions of stress UI were in hysterectomies 21%, in LC 15%, and in TCRE 18%. Similarly, incidence proportions of urge UI were in hysterectomies 11%, in LC 11%, and in TCRE 8%. No significant differences between surgical procedures were found; however, we found substantial amount of changes in continence status from continent to incontinent and vice versa in all three groups.

No significant difference was found after hysterectomy compared to controls in the prevalence or incidence proportions of UI after 10 years follow-up. Hysterectomy is not a risk factor of UI.