A premenopausal woman with fragmentation of a nonexpired copper intrauterine device and concomitant presence of Actinomyces species.

Actinomyces spp. has been shown to form biofilms when exposed to copper, possibly enhancing its degradation. Fragmentation and migration of the copper coil on an intrauterine device (IUD) is rare, but the concomitant presence of Actinomyces spp. may increase its incidence. We present the first case of a fragmented copper IUD within its lifespan of 10 years, with documented Actinomyces genitourinary tract colonization in a premenopausal woman.