A 28-year-old nulliparous woman requests an IUCD for contraception. She has a history of heavy menstrual bleeding and dysmenorrhea. Which feature would BEST distinguish the choice of levonorgestrel-releasing IUCD over a copper IUCD in her case?

Explanation

## Clinical Indication: LNG-IUS vs. Copper IUCD in Heavy Menstrual Bleeding ### The Clinical Scenario **Key Point:** A woman with **heavy menstrual bleeding (HMB) and dysmenorrhea** presents a clear clinical distinction between the two IUCD types. ### Effect on Menstrual Patterns | Parameter | Copper IUCD | LNG-IUS | |-----------|------------|----------| | **Menstrual bleeding** | Increased (20–50% increase) | Reduced (50–90% reduction) | | **Dysmenorrhea** | Often worsened | Significantly improved | | **Mechanism** | Inflammatory response → heavy flow | Endometrial atrophy → scanty flow | | **Amenorrhea rate** | 0% | 20–40% by 12 months | ### Why LNG-IUS is Superior in This Case 1. **Therapeutic benefit:** LNG-IUS is not just contraceptive—it is **therapeutic** for HMB and dysmenorrhea 2. **Endometrial atrophy:** Progestin-induced endometrial thinning reduces menstrual flow by 50–90% 3. **Pain relief:** Reduced prostaglandin production and endometrial suppression alleviate dysmenorrhea 4. **Dual indication:** Contraception + treatment of menorrhagia **High-Yield:** LNG-IUS is the **gold-standard IUCD choice for women with HMB and dysmenorrhea** — it is the only IUCD that improves these conditions rather than worsening them. **Clinical Pearl:** In India, LNG-IUS (Mirena®) is increasingly prescribed for **medical management of menorrhagia** as an alternative to hysterectomy, making it ideal for this patient profile. ### Contraindication Alert **Warning:** Copper IUCDs are **relatively contraindicated** in women with HMB or dysmenorrhea because they exacerbate both conditions through local inflammatory response.