Unusual Perils of Pelvic Organ Prolapse.

Background: Prolapse can be treated with expectant management, pessary, or surgery. Although we consider the first two options benign, rare but serious complications can arise. CASE 1: A 64-year-old presented with recurrent grade 4 prolapse. After 6 months of expectant management, she developed a fistula from an ulcerated area of the prolapse into the peritoneal cavity. CASE 2: An 81-year-old who diligently cared for her ring pessary for 18 years presented with a vesicovaginal fistula. CASE 3: An 80-year-old with a longstanding pessary who stopped using vaginal estrogen for 2 years before developing a vesicovaginal fistula.

Conclusions: Management of prolapse expectantly and with pessaries are effective treatments, especially to avoid surgery, but can present with their own unusual and infrequent complications, such as fistula formation.