Table 1.

WHO medical eligibility criteria contraindications to levonorgestrel-releasing intrauterine system insertion

(Category 4 or risk is unacceptable)

Current pregnancy Current purulent cervicitis or pelvic infection (delay insertion until treatment is complete) Immediate post-septic abortion Current malignant gestational trophoblastic disease Current breast cancer Untreated cervical cancer Untreated endometrial cancer Unexplained vaginal bleeding Distorted uterine cavity (any congenital or acquired abnormality interfering with IUD insertion, including uterine fibroids) Known pelvic tuberculosis

Data from World Health Organization 2004.⁵