Mirena is a hormonal intrauterine device (IUD) that can provide long-term birth control (contraception).

The device is a plastic T-shaped frame that is inserted into the uterus, where it releases a type of progestin hormone. To prevent pregnancy, Mirena works to:

The mucus in the cervix thickens to prevent sperm from reaching or fertilizing an egg
Reduces the thickness of the endometrium and partially prevents ovulation
Mirena prevents pregnancy for up to five years after it has been inserted. It is one of several types of hormonal IUDs approved by the US Food and Drug Administration.

Mirena must be removed after 7 years. However, your healthcare professional can place a new Mirena during the same office visit if you choose to continue using Mirena

Mirena is an effective long-term contraceptive method. Premenopausal women of all ages can use it, including teenage girls.

Among the various benefits of Mirena are the following:

Eliminate the need to interrupt sex to use a contraceptive
Does not require the participation of the spouse
It can remain in place for up to five years
It can be removed at any time, followed by a quick return to fertility
It can be used during breastfeeding, although you may have to wait six to eight weeks after delivery to avoid the risk of injuring the uterus during its installation
There is no risk of side effects related to birth control methods that contain estrogen
Mirena can reduce menstrual bleeding after three or more months of use. About 20 percent of women stop periods after one year of using Mirena.

MIRENA LOOP can also reduce the following:

Severe menstrual pain or pain related to the abnormal growth of endometrial tissue outside the uterus (endometriosis)
risk of pelvic inflammatory disease
Endometrial cancer risk

Because of these non-contraceptive benefits, MIRENA LOOP is often prescribed to women with:

Heavy bleeding during menstruation
Painful cramps or pain during your period
Abnormal growth of the lining of the uterus (endometrial hyperplasia)
Abnormal growth of endometrial tissue in the muscular wall of the uterus (adenomyosis)

Side effects associated with MIRENA LOOP include:

young love
Pain when touching the breast
Irregular bleeding, which may improve after six months of use
Mood changes
Painful cramps or pelvic pain

liver disease or liver tumor (benign or malignant); a condition that weakens your immune system, such as AIDS, leukemia, or IV drug abuse; if you have another intrauterine device (IUD) in place; if you had an abortion or miscarriage in the past 6 weeks

Get to know the details on MIRENA LOOP

  • Small and T-shaped
  • Made of soft, flexible plastic
  • Placed in your uterus by a healthcare professional who can remove it at any time in case your plans change
  • Can be used whether or not you’ve had a baby


Mirena is a small t-shaped device that is placed in your uterus by a healthcare professional

You may experience pain, bleeding, or dizziness during and after placement. If your symptoms do not pass within 30 minutes after placement, Mirena may not have been placed correctly.

Your healthcare professional will examine you to see if Mirena needs to be removed or replaced.


Mirena® (levonorgestrel-releasing intrauterine system) is a hormone-releasing IUD that prevents pregnancy for up to 7 years. Mirena also treats heavy periods for up to 5 years in women who choose intrauterine contraception.



  • If you have an untreated genital infection, get infections easily, or have certain cancers, don’t use Mirena. Less than 1% of users get a serious pelvic infection called pelvic inflammatory disease (PID).
  • If you have persistent pelvic or stomach pain, or excessive bleeding after placement, tell your healthcare professional (HCP). If Mirena comes out, call your HCP and avoid intercourse or use non-hormonal back-up birth control (such as condoms or spermicide). Mirena may go into or through the wall of the uterus and cause other problems.
  • Pregnancy while using Mirena is uncommon but can be life-threatening and may result in loss of pregnancy or fertility.
  • Ovarian cysts may occur but usually disappear.
  • Bleeding and spotting may increase in the first 3 to 6 months and remain irregular. Periods over time usually become shorter, lighter, or may stop.


Heavy periods, also known as heavy menstrual bleeding or HMB, are defined as excessive menstrual blood loss during a single cycle (> 80 mL or about 6 tablespoons). You may have HMB if you: 


  • have a menstrual flow that soaks through one or more pads or tampons every hour for several hours in a row
  • need to double up on pads to control your menstrual flow
  • need to change pads or tampons during the night
  • have menstrual periods lasting more than 7 days
  • have a menstrual flow with blood clots the size of a quarter or larger

How small is Mirena?

Mirena is about the size of a sugar packet






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