Health Information
Levonorgestrel (LNg) IUD
Topic Overview
The levonorgestrel (LNg) Reference intrauterine device (IUD) Opens New Window releases small amounts of levonorgestrel, a form of Reference progesterone Opens New Window, into the Reference uterus Opens New Window each day. This type of IUD reduces cramping and heavy menstrual bleeding. And it is a highly effective method of Reference birth control Opens New Window.
It must be replaced every 5 years to ensure that hormone release continues at a level that helps you.
How well does it work?
Most women have a significant decrease in uterine blood loss with the LNg IUD. Some studies report up to a 95% reduction in blood loss.Reference 1 Increased spotting during the first couple of months is common, followed by less bleeding thereafter.
What are common side effects?
The LNg IUD can reduce menstrual bleeding and cramps and, in many women, eventually cause menstrual periods to stop altogether. In this case, not menstruating is not harmful.
The LNg IUD may cause hormonal side effects similar to those caused by oral contraceptives.
- Breast tenderness
- Mood swings
- Headaches
- Acne
These side effects are not common. But if they do happen, they usually go away after the first few months.
| By: | Reference Healthwise Staff | Last Revised: Reference January 27, 2012 |
| Medical Review: | Reference Sarah Marshall, MD - Family Medicine
Reference Kirtly Jones, MD - Obstetrics and Gynecology |
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