Signs that your Mirena IUD has moved may include pelvic pain, unusual bleeding, changes in the IUD strings, or feeling the device near your cervix. Some people experience no noticeable symptoms, making medical evaluation important when displacement is suspected.
Mirena is a hormonal intrauterine device manufactured by Bayer. It is FDA-approved to prevent pregnancy for up to eight years and treat heavy menstrual bleeding for up to five years. Although generally safe and highly effective, complications such as displacement, expulsion, and uterine perforation can occur.
Zayed Law helps individuals throughout Chicago, Illinois, and Florida understand their legal options when defective medical products or suspected medical negligence cause serious injuries.
What Does It Mean When Your Mirena IUD Moves?
A Mirena IUD has moved when it is no longer positioned correctly inside the uterus. The device may shift downward, become partially expelled, or, in rare circumstances, penetrate the uterine wall.
Mirena is a small, T-shaped device placed inside the uterus by a healthcare professional. It releases levonorgestrel, a hormone that helps prevent pregnancy.
Three complications are important to distinguish:
- Displacement: The IUD is not positioned as intended within the uterus.
- Expulsion: The device partially or completely passes out of the uterus.
- Perforation: The device penetrates or passes through the uterine wall.
These conditions have different medical implications and may require different treatments.
What Are the Signs Your Mirena IUD Has Moved?
The most common warning signs of possible Mirena displacement include changes in the strings, worsening pelvic pain, unusual vaginal bleeding, and feeling part of the device.
Changes in IUD Strings
Mirena has thin strings extending through the cervix into the vagina.
Possible warning signs include:
- Strings that feel longer or shorter than before.
- Strings that can no longer be located.
- Feeling hard plastic near the cervix.
- A partner feeling the hard device during intercourse.
Missing strings do not automatically mean the device has moved. They may simply have curled into the cervical canal or uterus.
However, changes should be evaluated by a healthcare professional.
Pelvic Pain or Severe Cramping
Persistent or worsening pelvic pain may indicate an IUD complication.
Mild cramping can occur after insertion, but severe pain, particularly when accompanied by bleeding or fever, requires prompt medical attention.
Unusual Vaginal Bleeding
Changes in bleeding patterns can occur with hormonal IUDs, particularly during the first several months.
However, unexpectedly heavy bleeding or a significant increase in bleeding after periods have become lighter may indicate expulsion or another complication.
Pain During Intercourse
New pain during sexual activity may be associated with displacement, infection, or another gynecological condition.
A medical examination is necessary to determine the cause.
How Common Are Mirena IUD Migration and Expulsion?
Mirena expulsion is uncommon, while uterine perforation is considerably rarer. The likelihood depends on factors including childbirth history, breastfeeding status, and timing of insertion.
The FDA-approved Mirena prescribing information reports a 4.5% expulsion rate over a five-year clinical study.
The American College of Obstetricians and Gynecologists (ACOG) has historically estimated uterine perforation at approximately one occurrence per 1,000 IUD insertions, although risks vary across populations.
| Complication | What Research Shows |
| IUD expulsion | Mirena trials reported 4.5% over five years |
| Uterine perforation | Historically estimated at approximately 1 per 1,000 insertions |
| Missing IUD strings | Often caused by string retraction rather than displacement |
| Partial expulsion | Requires clinical evaluation and generally removal |
These statistics should not be interpreted as an individual’s probability of experiencing complications.
Why Would a Mirena IUD Move Out of Place?
Mirena may become displaced because of uterine contractions, the timing of insertion, anatomical factors, or complications during placement. Not every displacement results from an improperly performed procedure.
Factors associated with certain IUD complications include:
- Insertion shortly after childbirth.
- Breastfeeding at the time of insertion.
- Heavy menstrual bleeding.
- Younger age.
- Certain uterine abnormalities.
- Technical difficulties during insertion.
The risk factors for expulsion and perforation are not identical.
For example, breastfeeding and postpartum insertion are associated with increased perforation risk, while heavy menstrual bleeding is associated with increased expulsion risk.
What Are the Dangers of a Displaced Mirena IUD?
A displaced Mirena IUD may become less effective at preventing pregnancy and can cause pain, bleeding, or other complications. Rare cases involving uterine perforation may require surgery.
Potential complications include:
Unintended Pregnancy
A partially or completely expelled IUD may no longer provide reliable contraception.
Pregnancy occurring with an IUD in place also requires prompt evaluation because of the increased concern for ectopic pregnancy.
Uterine Perforation
Uterine perforation occurs when the device penetrates or passes through the uterine wall.
A perforated IUD may enter the abdominal cavity and, in rare cases, affect nearby tissues or organs.
Infection
Pelvic infection can occur in IUD users, although serious infection is uncommon.
Fever, worsening pelvic pain, or unusual discharge should be evaluated promptly.
Surgery or Difficult Removal
An embedded or perforated IUD may require specialized removal procedures.
Some cases can be managed through hysteroscopy, while an IUD outside the uterus may require laparoscopic surgery.
How Are IUD Displacement, Expulsion, and Perforation Different?
Displacement describes an incorrectly positioned IUD, expulsion involves the device leaving the uterus, and perforation involves penetration of the uterine wall.
| Condition | Possible Symptoms | Typical Medical Response |
| Displacement | Pain, bleeding, or no symptoms | Ultrasound and individualized management |
| Partial expulsion | Longer strings, pain, visible device | Removal and contraception planning |
| Complete expulsion | Device falls out, possibly unnoticed | Pregnancy assessment and replacement options |
| Uterine perforation | Pain or sometimes no symptoms | Imaging and possible surgical removal |
The appropriate treatment depends on the device’s location, symptoms, and pregnancy status.
What Should You Do if You Think Your Mirena IUD Has Moved?
If you suspect Mirena displacement, contact your healthcare provider promptly and use backup contraception until the device’s position is confirmed. Do not attempt to push the IUD back into place or remove it yourself.
Take these steps:
- Check for changes in the strings. Do not pull on them.
- Contact your gynecologist. Explain any pain, bleeding, or changes.
- Use backup contraception. Ask about emergency contraception if recent intercourse creates a pregnancy concern.
- Take a pregnancy test when appropriate. A clinician can advise on testing and timing.
- Obtain imaging if recommended. Ultrasound can help confirm the device’s location.
- Follow medical instructions. Treatment may involve observation, removal, or replacement.
Seek emergency medical attention for severe abdominal pain, fainting, heavy bleeding, or symptoms suggesting ectopic pregnancy.
How Do Doctors Diagnose and Treat a Moved Mirena IUD?
Healthcare professionals generally diagnose suspected IUD displacement through a pelvic examination and imaging, most commonly ultrasound. Additional imaging may be needed if the device cannot be located.
Treatment options include:
- Monitoring when the device remains appropriately positioned.
- Removing a partially expelled IUD.
- Replacing the device when appropriate.
- Using alternative contraception.
- Performing specialized removal procedures.
- Surgery for certain perforations.
The FDA-approved Mirena labeling recommends evaluating possible displacement when strings are missing or significantly shortened.
Can You File a Lawsuit if Your Mirena IUD Moved?
You may have a legal claim if a defective medical device, inadequate warning, or negligent medical care caused a legally compensable injury. However, IUD displacement alone does not automatically establish liability.
Potential legal theories include:
- Product liability involving an alleged manufacturing or design defect.
- Failure to provide legally adequate warnings.
- Medical malpractice involving negligent insertion or removal.
- Negligent failure to evaluate concerning symptoms.
A successful claim generally requires evidence of a legally actionable failure and a connection between that failure and the injury.
Previous lawsuits involving Mirena do not establish that every displaced device is defective or that every patient qualifies for compensation.
If you suffered serious complications after Mirena insertion, contact Zayed Law to discuss whether your circumstances warrant a legal investigation.
What Compensation May Be Available for Mirena Injuries?
Compensation may be available when a claimant can establish liability and resulting damages under applicable law.
Potential damages include:
- Emergency medical treatment.
- Diagnostic imaging.
- Surgical removal.
- Hospitalization.
- Lost income.
- Future medical expenses.
- Pain and suffering.
- Other legally recognized losses.
The amount depends on the injury, evidence, applicable law, and available sources of recovery.
Preserve your medical records, imaging reports, device information, and communications with healthcare providers.
How Long Do You Have to File a Mirena Injury Lawsuit?
The filing deadline depends on the state, the type of claim, when the injury occurred, and when it was or reasonably should have been discovered.
Illinois generally has a two-year limitations period for personal injury claims, subject to exceptions. Medical malpractice claims have separate discovery and repose rules.
Florida generally applies a two-year period to negligence claims governed by its 2023 changes, while product liability and medical malpractice claims may have different deadlines and procedural requirements.
Because these distinctions can affect your right to recover, obtain legal guidance promptly.
Frequently Asked Questions About Mirena IUD Movement
Can a Mirena IUD move without symptoms?
Yes. Some cases of displacement or expulsion produce little or no noticeable discomfort. Missing strings or an unexpected pregnancy may prompt further evaluation.
Can Mirena move after years of being in place?
Yes. Although some complications occur around insertion, expulsion or displacement may be identified later.
Can a moved Mirena IUD cause pregnancy?
Yes. A partially or completely expelled device may lose contraceptive effectiveness. Pregnancy with an IUD requires prompt medical assessment.
Can a moved Mirena IUD cause infertility?
Severe complications involving infection or damage to reproductive organs may affect fertility in some circumstances. Routine displacement does not automatically cause infertility.
What happens if my Mirena strings disappear?
Missing strings may indicate retraction, expulsion, or perforation. A clinician can assess pregnancy status and locate the device.
Does Mirena removal cause a hormonal crash?
Some individuals report symptoms after hormonal IUD removal, but the term “Mirena crash” is not a formally established medical diagnosis. Persistent or severe symptoms should be evaluated by a healthcare professional.
Contact Zayed Law About a Potential Mirena Injury
A displaced Mirena IUD can cause significant physical discomfort and, in rare circumstances, serious medical complications. Prompt diagnosis and appropriate treatment are essential.
Zayed Law represents individuals throughout Chicago, Illinois, and Florida who have suffered injuries potentially involving medical negligence or defective products.
If you experienced uterine perforation, serious complications, or another injury associated with Mirena, contact Zayed Law for a free, no-obligation consultation. The firm can review your circumstances and discuss whether you may have grounds to pursue compensation.
