A Case of Migrating "Saf-T-Coil" Presenting With a Vesicovaginal Fistula and Vesicovaginal Calculus.

Intrauterine devices (IUDs) are reliable method for contraception. Although, they are generally regarded as safe, serious consequences may occur in case of uterine perforation or intravesical migration. We present a rare case of a 74 year old lady with a forgotten IUD for 42 years resulting in intravesical migration, formation of vesicovaginal fistula (VVF) without uterine perforation, complete urinary incontinence, recurrent urinary tract infections (UTIs) and a large vesicovaginal calculus.