What Is Mirena?

Mirena is a hormonal IUD, a type of long-acting removable birth control, or LARC. It is made of flexible plastic and levonorgestrel, a hormonal medication that is used in a variety of birth controls, including Plan B. Hormonal IUDs are one of the most popular kinds of birth control because of their success rate and claimed benefits, which include no daily pill and lighter periods. 

However, some women have reported severe side effects from using Mirena, including uterine perforation and hypertension. Bayer is facing lawsuits for allegedly causing these conditions in patients using Mirena.

If you are one of the women who has experienced these or other complications, contact us to find out if you have a case. Mirena may have left a lasting and harmful impact on your life. There’s no reason to delay getting the justice you deserve. The consultation is free and you pay nothing unless your case is successful.

Who Makes Mirena?

Mirena is produced by Bayer, which manufactures two other types of hormonal IUD: Kyleena and Skyla. Bayer also manufactures Essure, the metal coil device used for female sterilization. Bayer sought and was awarded FDA approval for the Mirena device in 2000.

Side Effects of Mirena IUDs

The side effects that are most commonly associated with Mirena include:

  • Acne
  • Headaches
  • Cramping
  • Pelvic pain
  • Tenderness in the breasts
  • Irregular bleeding (which usually improves after six months of using Mirena)
  • Mood changes

Complications and Risks of Using Mirena

Risks of Uterine Perforation

There is a risk that Mirena will perforate the uterus, although it is supposed to be rare. Perforation of the uterus is more likely to occur if the IUD is inserted in the postpartum period after giving birth. Bayer’s warning label for the Mirena device cautions that perforation could occur during the insertion of the IUD. However, many women claim that the device caused perforation afterward and that they were not adequately informed of this risk.

Complications of Perforation

Uterine perforation occurs during about one of every thousand IUD insertions and is supposed to almost always occur during the insertion process. Many women with Mirena, however, have claimed that they experienced uterine perforation afterward and that Bayer had failed to warn them of this possibility.

Symptoms of Perforation

Severe abdominal pain during or after the procedure could be a sign of uterine perforation. Because there may be pain or cramping during the procedure, it is recommended to immediately inform the doctor if the pain is severe or if it continues more than thirty minutes after the procedure. If severe abdominal pain occurs at any time, women experiencing it should report it immediately.

Uterine perforation, if left untreated, can carry the risk of causing damage to the bowels, bladder, or nearby blood vessels, as well as possibly causing sepsis or hemorrhaging. This condition can require surgery to treat.

Mirena and Hypertension

Another risk of Mirena that isn’t listed in the possible side effects is hypertension. Some women who have used Mirena have developed intracranial hypertension, which develops when spinal fluid builds up too high in the skull, creating pressure. Symptoms of intracranial hypertension are severe headaches, a whooshing noise in the ears, and papilledema, or visual changes, which could result in vision loss or blindness. Other possible symptoms include:

  • Sharp pain in the arms, legs, and back 
  • Severe neck stiffness
  • Vomiting and nausea
  • Memory difficulties
  • Numbness in the face, hands, and feet
  • Depression
  • Exercise intolerance

A research study has found a link between Mirena’s dosage of levonorgestrel and intracranial hypertension. Many women have developed intracranial hypertension as a complication of using Mirena and have initiated lawsuits against Bayer.

Risks of Pregnancy

With Mirena, the risks of pregnancy are less than one percent. However, if a pregnancy does occur while using Mirena, because of the birth control effects of the IUD, it is more likely to be an ectopic pregnancy.

Risks of STIs

Mirena does not protect against sexually transmitted infections (STIs). Women using Mirena or another IUD would need to take regular precautions to protect themselves against contracting an STI. Mirena could, if an STI is contracted before its insertion, make the symptoms of the STI worse when it’s inserted.

Mirena-Related Litigation Against Bayer

Lawsuits against Bayer began to accumulate in 2011, before they were consolidated into one case in New York in 2013. The plaintiffs allege that they experienced uterine perforation due to using Mirena. Warning labels on Mirena do include the risk of perforation, but only during insertion. The women suing Bayer over Mirena claim that the uterine perforation occurred after the insertion, rather than during and that Bayer failed to warn them of the risks of later perforation.

Bayer claimed that perforation can only occur during insertion, however, and that perforation could go undetected for some time. A judge in New York ruled in 2016 in favor of Bayer, saying that the plaintiffs had failed to prove that Bayer was negligent.

As of 2018, other women were suing Bayer over severe side effects that they experienced while using Mirena. The results of these cases have not yet been decided.

Should You Consider a Lawsuit Against The Makers of Mirena?

If you have a Mirena device and have experienced complications, such as uterine perforation or intracranial hypertension, and believe that you were not sufficiently warned about the risks of those complications, you may have a case against Bayer. Contact Farah & Farah now to schedule a free consultation with one of our highly qualified attorneys. You pay nothing unless your case is successful.


We’re here to help: Contact Us

The best time to contact us is right now. We’re available 24/7 to take your call.

Contact Us

By submitting this form you agree to the Terms of Use

Stay In The Loop

Our newsletter features our employees, community involvement, Farah & Farah news, and tips to protect you and your family!

Contact Us

By submitting this form you agree to the Terms of Use

Give us a Call


Terms & Conditions: The attorneys of Farah & Farah are experienced in personal injury, medical malpractice, product liability, workers’ compensation, social security, and negligence lawsuits. Our attorneys are proud to represent working people and families in Florida and Georgia. Read Our Full Terms of Use Here

*Disclaimer: Not all results are provided and not all clients have provided testimonials, the results are not necessarily representative of results obtained by the lawyer, and a prospective client’s individual facts and circumstances may differ from the matter in which the results and the testimonials are provided.