Levonogestrel Intrauterine Device (Mirena IUD/Skyla IUD) Side effects Expulsion Irregular bleeding Ovarian cyst Acne Contraindications Pregnancy or suspicion of pregnancy Uterine anomaly Acute pelvic inflammatory disease (PID) or high risk of developing PID Recent infected abortion in past 3 months Known or suspected uterine or cervical neoplasia or abnormal Pap smear Genital bleeding of unknown etiology Untreated cervicitis