Bleeding Patterns among Adolescents Using the Levonorgestrel Intrauterine Device: A Single Institution Review.

Abstract

To describe the bleeding patterns associated with the use of the levonorgestrel intrauterine device (IUD) in adolescents. A retrospective chart review of postmenarchal adolescent patients ages 8-19years who had the levonorgestrel IUD inserted at Phoenix Children's Hospital from 2012 to2018. Insertion of the 52-mg and 13.5-mg levonorgestrel IUD. The rate of amenorrhea and other bleeding patterns after insertion of the levonorgestrel IUD and the factors that might predict those bleeding patterns. A total of 260 charts were identified with 221/260 (85.0%) patients choosing the 52-mg IUD and 39/260 (15.0%) patients choosing the 13.5-mg IUD to be inserted. Follow-up data were available for 166 patients. The overall rate of amenorrhea among IUD users was 39.8% (n=66) with no difference between 52-mg and 13.5-mg IUD users (P=.656). Regularity and flow of menstrual cycle, history of bleeding disorder, history of developmental delay, and current treatment with testosterone for gender dysphoria before IUD insertion did not appear to have a significant effect on the rate of amenorrhea or bleeding patterns post-IUD insertion. The levonorgestrel IUD can be successfully used to control abnormal uterine bleeding and suppress menses in adolescents. Menstrual cycle characteristics pre-IUD insertion did not result in predictable post-IUD bleeding patterns.