Actinomyces species are considered part of the normal vaginal and urogenital tract flora. The percentage of Pap smears containing Actinomyces-like organisms varies but is most commonly reported as approximately 7% among women using IUDs. That number is supported by multiple sources, including the Infectious Diseases Society of America guideline and several clinical studies. The incidence can be higher or lower depending on the type of IUD; for example, copper IUDs have been associated with rates up to 20%, while levonorgestrel-releasing IUDs show lower rates around 2.9%. In women with an IUD, who are found to have this finding on their liquid-based Pap smear, what is the appropriate management? In this episode, which comes from one of our podcast family members, we will discuss this topic and it’s management in both symptomatic and symptomatic (pelvic pain) IUD wearing women. 1. McHugh KE, Sturgis CD, Procop GW, Rhoads DD. The Cytopathology of Actinomyces, Nocardia, and Their Mimickers. Diagnostic Cytopathology. 2017;45(12):1105-1115. doi:10.1002/dc.23816. 2. Practice Bulletin No. 186: Long-Acting Reversible Contraception: Implants and Intrauterine Devices. Obstetrics and Gynecology. 2017;130(5):e251-e269. doi:10.1097/AOG.0000000000002400. 3. Miller JM, Binnicker MJ, Campbell S, et al. Guide to Utilization of the Microbiology Laboratory for Diagnosis of Infectious Diseases: 2024 Update by the Infectious Diseases Society of America (IDSA) and the American Society for Microbiology (ASM). Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America. 2024; ciae104. doi:10.1093/cid/ciae104. 5. Carrara J, Hervy B, Dabi Y, et al. Added-Value of Endometrial Biopsy in the Diagnostic and Therapeutic Strategy for Pelvic Actinomycosis. Journal of Clinical Medicine. 2020;9(3):E821. doi:10.3390/jcm9030821.
