IUD nomenclature
Mitchell D. Creinin, MD; Julia E. Kohn, PhD, MPA; Jennifer H. Tang, MD, MSCR; and Tania Basu Serna, MD, MPH

The World Health Organization (WHO) released a statement regarding intrauterine device (IUD) nomenclature to clarify various terms used for intrauterine contraception. This clarification was prompted, according to the statement, because “(t)he use of many different acronyms to describe a method category can lead to confusion among governments, procurers, distributors, academics, providers and users.” The WHO added that “(i)t is important to select and align a single term.” The Society of Family Planning applauds the WHO for its efforts and agrees with the conclusion that any intrauterine contraceptive should be referred to as an intrauterine device (IUD), and that IUDs should be categorized as nonhormonal IUDs and hormonal IUDs. The WHO issued this statement to name categories in line with their common approach to nomenclature for a broad global audience. The Society feels the nomenclature needs additional detail to be appropriate for more potential audiences like researchers, authors, and pharmaceutical companies, and makes the following recommendations.