Contraception
Copper IUD or Mirena: which is better? Gynecologist in Seoul, Korea
The short answer
It depends on your priorities. The copper IUD is hormone-free but can make periods longer, heavier or more painful. Mirena releases a small amount of hormone, making periods much lighter or absent and reducing pain, but can cause irregular spotting at first. Both are highly effective and long-lasting.
| Copper IUD | Mirena | |
|---|---|---|
| Hormones | None | Low-dose progestogen |
| Periods | May be heavier | Lighter or absent |
| Typical replacement | About 5 years (model-dependent) | About 5 years |
See copper IUD and Mirena.
Answered by Dami Women's Clinic (다미산부인과의원), Yeouido, Seoul · Dr. Ko Sang-hyun, OB/GYN. General information, not a diagnosis. Emergencies in Korea: call 119. Medical disclaimer · International Patient Center