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How long can a Mirena IUD be effectively left in place? #609/8
I will have had the Mirena in place for 5 years in July 2008. I went in for a family planning visit and my provider saw me for a Pap, but did not want to do anything about my contraception needs (although that was my primary concern). I cannot get in again prior to July 2008 due to my work committments. I really only want contraception for another year, maximum two years.

How long can the Mirena actually be left in place (it was placed July 5, 2003)?
 

The Mirena IUD appears to be effective for 7 maybe more years.

 

 

Here is a reference:

Both of the intrauterine contraceptives in the United States rank in the top tier of contraceptive effectiveness (along with surgical sterilization, implants, and injectable contraceptives).  In combined World Health Organization and Population Council trials, the first-year discontinuation rate of the TCu 380A for accidental pregnancy was only 0.7 per 100 women, and even lower rates occurred in years two through ten. In World Health Organization trials, the cumulative 12-year failure rate with the TCu 380A was 2.2 pregnancies per 100 women.  In three trials conducted by Leiras, the Finnish manufacturer of the levonorgestrel system, the first-year cumulative failure rate was 0.14 per 100 women, and the cumulative five-year failure rate was only 0.71 per 100 women. In the Population Council’s randomized trial of the levonorgestrel intrauterine system vs. the TCu 380A, the seven-year cumulative failure rates were 1.1 and 1.4 per 100 women, respectively.  In contrast, the overall ten-year failure rate with all methods of tubal sterilization in the United States is 1.9 per 100 women.  Thus, contemporary intrauterine contraceptives rival the effectiveness of tubal sterilization.[D. Grimes-Contraceptive Technology 2008]

  

Key Words:  Mirena IUD, family planning, Pap smear, contraception, maximum years

 

Reference:

Grimes D. Intrauterine devices (IUDs) IN Hatcher RA, Trussell J, Nelson AL. et at Contraceptive Technology 19th Edition; pages 118-119: Ardent Media Inc. 2008


Posted 8-13-2008, Updated 8-24-2008 

Robert A. Hatcher MD, MPH
Emeritus Professor of Gynecology and Obstetrics
Emory University School of Medicine
Atlanta, GA
---2008-08-25

The directors and owners of this website and any publications and information concerning health matters offered here advise a person with a particular problem to consult a primary-care clinician or a specialist in obstetrics, gynecology, or urology (depending on the problem or the contraceptive) as well as the product package insert and other references before diagnosing, managing, or treating the problem.
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