Case reports: periurethral bulking agents and presumed urethral diverticula

Urethral bulking agents are a commonly employed modality utilized for treatment of female stress urinary incontinence. These primarily collagen-based agents are placed in the proximal urethra to facilitate mucosal coaptation during increases of intra-abdominal stress. Several known complications of these agents exist, including urethral prolapse, retention, and urinary infection. Herein, we report two cases diagnosed as urethral diverticuli which were ultimately determined anatomic aberration secondary to prior bulking agent therapy. Recognition of this potential sequela of bulking agent placement is important for the female pelvic surgeon to recognize to avoid the morbidity of potential invasive interventions.