Risk of clinical pelvic inflammatory disease attributable to an intrauterine device

Use of the intrauterine device (IUD) is avoided because of perceived risk of pelvic inflammatory disease (PID) associated with sexually transmitted infections (STI). Calculation of the risk of clinical pelvic inflammatory disease showed that the estimated risk was low (0·15%), even with a high STI prevalence. This estimated risk argues for making IUDs more available.