Study of Local Anesthesia as a Method to Decrease IUD Insertion Related Pain

Despite the high efficacy of intrauterine devices (IUDs), some women choose not to receive IUDs secondary to the pain associated with insertion. Nulliparous women may be especially susceptible to procedure-related pain from IUD insertion. This study will investigate the difference in perceived pain from IUD insertion, comparing local anesthesia to a placebo, among women who have not had a vaginal delivery before. The investigators anticipate that among women who have not had a previous vaginal delivery, the pain associated with IUD insertion will be significantly decreased after administration of local anesthesia.