RESUMEN
INTRODUCTION: Pelvic organ prolapse is a very frequent affection especially in elderly women. Vaginal pessary is a common conservative treatment and recommended as first line therapy. Guidelines recommend to do a regular follow up every 6 to 12 months with a healthcare professional. We report the case of a patient with neglected vaginal pessary who had a vesicovaginal and a concomitant rectovaginal fistula. CASE REPORT: A 84-year-old woman was admitted for chronic pelvic pain and vaginal discharge. An entrapped cube pessary was removed and the diagnostic of a 3cm rectovaginal fistula with a vesicovaginal fistula was made. The patient had a two-stage surgery, vaginal way then open abdominal way, for closing the fistulas. CONCLUSION: Although vaginal pessary is a good conservative treatment for POP, it shall not be neglected or serious complications can be caused.