A bill of health for the IUD: where do we go from here?

Although intrauterine devices (IUDs) are a highly cost-effective contraceptive method, they have been unfortunately associated with increased risk of pelvic inflammatory disease (PID). However, new studies, including a 1992 World Health Organization (WHO) report, have demonstrated that there is little evidence of a causal link between IUD use and PID. IUD-related risk of PID is increased only during a short period following insertion, and exposure to STDs is probably the major determinant of PID risk for IUD users. Furthermore, no increased risk of PID use has been demonstrated with long-term IUD use. This paper examines the evidence, focusing on the 1992 WHO study, and looks to the future with suggestions for IUD research and programmatic approaches in the hope of vindicating the IUD's reputation and broadening the indications for its use.