Management of Uterine Fibroids with the Mirena IUD

Effect on Bleeding Symptoms

The Centers for Disease Control and Prevention recommends the Mirena IUD as an effective treatment for reducing menstrual bleeding associated with uterine fibroids, with most women experiencing a substantial reduction in menstrual blood loss, improving hemoglobin, hematocrit, and ferritin levels 1

The American College of Radiology notes that the Mirena IUD does not reduce fibroid volume, unlike GnRH agonists which achieve 18-50% fibroid volume reduction 3, 2

The Centers for Disease Control and Prevention suggests using the levonorgestrel IUD as first-line therapy for heavy menstrual bleeding when fibroid size and location do not significantly distort the uterine cavity, and the patient desires long-term hormonal management 1, 4
The American College of Radiology recommends against using the levonorgestrel IUD when bulk symptoms are the primary complaint, or when anatomical distortion of the uterine cavity makes proper IUD placement impossible 2, 1

The Journal of the American College of Radiology states that the levonorgestrel IUD serves as first-line medical management alongside combined oral contraceptives and tranexamic acid for bleeding control, and is preferred over oral contraceptives due to its local mechanism and lower systemic hormone exposure 4
The American College of Radiology notes that GnRH agonists/antagonists are required for fibroid shrinkage, achieving 18-50% volume reduction over 3-4 months 3, 2