IUD and Your Period

It's common to still get a period with a Mirena IUD, especially in the first 6–12 months after insertion. Here's why: 🩸 1. Hormonal Adjustment Phase

• Mirena releases levonorgestrel, a hormone that thins the uterine lining and thickens cervical mucus.
• Initially, your body is adjusting to the hormone, which can cause irregular bleeding, spotting, or even regular periods. 🧬 2. Uterine Lining May Still Build Up
• In some women, small amounts of the uterine lining may still grow and shed, especially if:
• They had heavier periods before Mirena.
• They are younger and have stronger natural hormonal cycles. 🩹 3. Not All Women Stop Bleeding Completely
• About 20–30% of women stop having periods within the first year.
• Others continue having:
• Lighter, shorter, or less painful periods.
• Occasional spotting. 🕒 4. It May Take Time
• It can take 6 months or longer for Mirena to fully suppress bleeding.
• Some women continue to have monthly bleeds throughout the 5–7 years Mirena is in place, though usually much lighter. ✅ When to See a Doctor:
• If your bleeding is very heavy, prolonged, or painful after 6 months.
• If you experience sudden changes in bleeding patterns after a long period of stability.