In a 48-year-old perimenopausal woman with heavy menstrual bleeding, iron deficiency anemia, and a normal pelvic ultrasound, what treatment options can reduce the bleeding?

Treatment for Heavy Menstrual Bleeding in Perimenopause

The levonorgestrel intrauterine system (LNG-IUS) is the most effective medical treatment for reducing heavy menstrual bleeding in your situation and should be your first-line therapy 1.

Treatment Algorithm

First-Line Medical Options (in order of effectiveness):

1. Levonorgestrel IUS (Mirena/Liletta) - Most effective option

   • Reduces menstrual blood loss by 71-96%
   • Also treats iron deficiency by dramatically reducing bleeding
   • Can be used until menopause
   • Avoids surgical intervention in most cases 1

2. Tranexamic acid - If LNG-IUS is declined or contraindicated

   • Antifibrinolytic that reduces bleeding by 40-50%
   • Taken only during menses (not continuously)
   • Well-tolerated with minimal side effects 2, 3

3. NSAIDs (mefenamic acid, ibuprofen) - Reasonable starting point

   • Reduce bleeding by 20-30%
   • Take during menstrual flow only
   • Less effective than above options but good for mild cases 3

4. Combined oral contraceptives or cyclical progestogens

   • Regulate cycles and reduce bleeding
   • Particularly useful if contraception also desired
   • Can use continuous dosing to avoid withdrawal bleeds 3

Managing Your Iron Deficiency Concurrently:

Given your iron deficiency, you need aggressive iron repletion while treating the bleeding source. Recent evidence shows that for women with HMB and iron deficiency anemia, first-line IV iron (specifically iron dextran) is more cost-effective than oral iron over the reproductive lifespan 4. This is particularly relevant since:

• Oral iron has frequent GI side effects and poor adherence
• You've likely been bleeding heavily for some time
• Oral iron may not keep pace with ongoing losses
• IV iron provides faster repletion (single infusion vs months of oral therapy) 4, 5

Clinical Reasoning:

The evidence strongly favors LNG-IUS as first-line therapy because it addresses both problems simultaneously - it's the most effective bleeding reducer AND allows your iron stores to recover 1. The 2017 systematic review specifically identifies it as superior to all other medical options for heavy menstrual bleeding 2.

Since your ultrasound is normal (ruling out fibroids, polyps, or structural abnormalities), you're an ideal candidate for medical management rather than surgical intervention 6, 7.

Important Caveats:

• If bleeding is causing severe anemia or hemodynamic instability, you need immediate intervention - this would change the algorithm to acute management
• Endometrial sampling should be considered if you have risk factors for endometrial hyperplasia/cancer (obesity, diabetes, prolonged anovulation), though guidelines vary on the age threshold 8
• If medical management fails after 3-6 months, consider endometrial ablation before proceeding to hysterectomy 7, 3

What NOT to Do:

Don't accept "watchful waiting" given your iron deficiency - this requires active treatment 6. The bleeding is already affecting your quality of life through anemia, which is an indication for intervention.

Bottom line: Request LNG-IUS insertion and discuss IV iron supplementation with your provider to address both the bleeding and iron deficiency simultaneously.