Can a moved IUD perforate my uterus or cause a serious infection?

An IUD (intrauterine device) is one of the most effective forms of reversible birth control. While complications are uncommon, it’s natural to wonder about risks if your IUD shifts or “moves.” Two concerns often come up: uterine perforation and serious infection. Below, we’ll break down what you need to know in clear, straightforward language.

What is IUD displacement?

An IUD can sometimes shift from its original position. This may happen shortly after insertion or, much less often, later on. Displacement doesn’t always lead to serious issues, but it can make the device less effective and, in rare cases, cause complications.

Common signs of a moved IUD include:

• Feeling the plastic or metal frame low in the vagina
• A change in the length of the threads you feel at your cervix
• Unusual cramping or pain
• Irregular bleeding

If you notice any of these changes, it’s a good idea to have a healthcare provider check the IUD’s position.

Uterine perforation: What you need to know

Perforation means the IUD has poked through the uterine wall. This is rare—occurring in about 1 to 2 out of every 1,000 insertions—but it can be serious if not identified and managed.

How perforation happens:

• During insertion, the device’s tip may accidentally pass through the uterine lining.
• If the uterus is tilted or unusually soft (as it can be right after childbirth), the risk may be slightly higher.

Signs and symptoms of uterine perforation:

• Severe, sharp pain during or right after insertion
• Persistent, worsening abdominal pain
• Fever (if infection sets in)
• Abnormal bleeding
• No IUD threads felt or threads longer/shorter than before

Diagnosing perforation:

• Pelvic exam: to check for threads and position
• Ultrasound: first-line imaging to confirm where the IUD is
• X-ray or CT scan: if ultrasound is inconclusive

Treatment for perforation:

• If the IUD is partially embedded, your provider may remove it in the office or surgically under anesthesia.
• If the IUD has fully perforated and migrated, a minimally invasive procedure (laparoscopy) is usually needed.
• Antibiotics may be prescribed if there’s any sign of infection.

Infection risk with a moved IUD

All IUDs carry a small risk of infection, primarily within the first 20 days after insertion. A moved or displaced IUD doesn’t automatically mean you will get an infection, but if bacteria hitch a ride on the device or enter during insertion, the chance rises.

Key points about IUD-related infection:

• Overall risk is low: about 1–2% in the first month, then drops to background levels.
• Most infections are mild pelvic inflammatory disease (PID) and respond to antibiotics.
• Severe infections are rare, but can lead to more serious issues if untreated.

Signs of infection to watch for:

• Fever and chills
• Foul-smelling vaginal discharge
• Severe or worsening pelvic pain
• Pain during intercourse
• Unusual bleeding

If you experience any of these symptoms, seek medical attention promptly.

What to do if you suspect a problem

If you think your IUD has moved, perforated, or caused an infection, don’t ignore it. Early diagnosis and treatment help prevent more serious complications.

Steps you can take:

1. Self-check threads: Gently feel for the IUD strings at the top of your vagina. Don’t pull on them.
2. Note your symptoms: Keep track of any pain, bleeding, discharge or fever.
3. Use a symptom checker: Try a free, online symptom check, using the doctor approved Ubie Symptom Checker to clarify your concerns.
4. Schedule a medical appointment: Call your gynecologist, family doctor or local clinic.
5. Avoid inserting anything: No tampons, menstrual cups or douching until you’ve been evaluated.

Preventive measures and safe use

While no method is foolproof, you can reduce your risk of IUD complications:

• Choose a qualified provider: Have your IUD inserted by someone experienced in IUD placement.
• Timing matters: Consider waiting at least six weeks after childbirth or a second-trimester abortion, when the uterus is more stable.
• Follow post-insertion care: Rest for a day, avoid strenuous activity, and check threads regularly as advised.
• Attend check-ups: A follow-up visit 4–6 weeks after insertion helps confirm correct positioning.

When to seek medical attention immediately

Some signs warrant urgent evaluation, as they could indicate a serious issue:

• Severe, sudden pelvic or abdominal pain
• Heavy bleeding (soaking through a pad in an hour)
• Fever higher than 100.4°F (38°C)
• Fainting, dizziness or lightheadedness
• Signs of shock (rapid heartbeat, clammy skin)

If you or someone else experiences these symptoms, call emergency services or go to the nearest emergency department.

Balancing risks and benefits

No contraceptive method is absolutely risk-free. But for most people, the benefits of an IUD—over 99% effective, long-lasting, and reversible—far outweigh the rare risks of perforation or infection.

Consider the following:

• Effectiveness: IUDs are among the most reliable birth control methods.
• Convenience: Once inserted, you don’t have to do daily or monthly tasks.
• Reversibility: Fertility returns quickly after removal.
• Side effects: Hormonal IUDs may alter bleeding patterns; copper IUDs can increase cramps or bleeding.

Talking with your doctor

Always keep an open line of communication with your healthcare provider. Be honest about your symptoms, concerns and lifestyle. They can help you weigh the risks and choose the best option for your reproductive health.

Remember: if anything feels seriously wrong, it’s better to get checked out right away.

Summary

• A displaced IUD can lead to reduced effectiveness, uterine perforation or infection—but these events are rare.
• Perforation occurs in about 1–2 per 1,000 insertions; most infections happen within 20 days of insertion.
• Watch for severe pain, abnormal bleeding, fever or missing threads.
• Use the doctor approved Ubie Symptom Checker for a free, online symptom check.
• Seek prompt medical care if you suspect a serious problem.
• Discuss any concerns with your healthcare provider to ensure safe and effective use of your IUD.

Speak to a doctor about any life-threatening or serious symptoms. Early detection and treatment can help you continue using your IUD safely or choose another method that fits your needs.