Many people worry about whether their intrauterine device can move or slip out without them noticing. Understanding the real risk, how it might present, and what to do next helps you feel more in control of your reproductive health.
Below is a quick reference that outlines the main scenarios where an IUD might partially or fully expel, how often this happens, and the signs that need medical attention.
| Outcome | How Often | Typical Timing | Key Signs |
|---|---|---|---|
| Complete expulsion | Less than 5% | Mostly within first few months | Strings longer than usual or missing, cramping, bleeding |
| Partial expulsion or low placement | Up to 10% | Can occur weeks to months after insertion | Strings not felt, mild pain, irregular bleeding |
| Normal strings, device in place | Over 90% | Stable long-term | No unexpected symptoms, routine checkups |
| Increased loss risk | Higher in first year | Postpartum or post-abortion insertion | Late periods, unusual discharge, missed checkup |
How to Know If Your IUD Has Fallen Out
Patients often ask how they can tell if their IUD has fallen out. The most reliable clues are related to string awareness and symptom changes. Feeling the strings longer than before, or not feeling them at all, can suggest partial or complete expulsion. Some people notice sudden increases in cramping, spotting, or heavier bleeding when the device shifts.
If you suspect the IUD has moved, avoid relying on how you feel alone. Use a mirror to check your strings if you are comfortable, but do not try to reinsert or adjust the device yourself. Contact your clinician for guidance and to schedule an exam with ultrasound if needed.
Medical Evaluation for Suspected Expulsion
Clinical evaluation is the only way to confirm whether an IUD is still in place. A pelvic exam allows your clinician to feel for strings, and an ultrasound can show the exact position of the device inside the uterus. In some cases, the IUD may be low but still effective, while in other situations it may need to be removed or replaced.
During the visit, describe your symptoms clearly, including when you last felt the strings, any pain, and changes in your cycle. Bring any notes about your last self-check so the clinician can make the most accurate assessment and recommend the safest next step.
Risk Factors That Increase Expulsion Likelihood
Certain factors make it more likely that an IUD could fall out or be expelled. These include being postpartum, having a recent abortion, experiencing difficult insertion, or having very heavy menstrual periods. Younger age at insertion and a history of prior expulsion also raise the risk.
Discussing these factors with your clinician before the procedure can help you choose the most suitable type and placement timing. In some cases, additional monitoring or a different contraceptive method may be recommended to reduce the chance of loss.
Consequences of Untreated Expulsion
Leaving a partially expelled or low-lying IUD unaddressed can lead to unintended pregnancy, irregular bleeding, or infection. The risk of ectopic pregnancy is higher if the device partially moves out of the uterine cavity and pregnancy occurs.
Early detection and management improve outcomes and help you maintain continuous protection. Regular follow-up visits and checking your strings as advised ensure problems are caught before they escalate.
Key Takeaways on IUD Security and Follow-Up
- Check your strings monthly in a comfortable position and note any lengthening or disappearance.
- Schedule routine follow-up visits so your clinician can confirm placement with a pelvic exam or ultrasound.
- Use backup contraception, such as condoms, if you suspect the IUD has moved until evaluated.
- Report heavy bleeding, severe cramps, or missing strings promptly to reduce the risk of complications.
- Discuss personal risk factors before insertion, such as postpartum timing or prior expulsion history.
FAQ
Reader questions
Could I have an IUD expulsion and not realize it for weeks?
Yes, it is possible to have a slow or partial expulsion with minimal symptoms at first. You might notice longer strings or mild cramping that seems unrelated, which is why self-checks and scheduled follow-ups are important.
What should I do if I can feel the strings suddenly longer but no pain?
Check your strings gently with clean fingers, but do not attempt to push the device further in. Contact your clinician for an appointment or same-day assessment, since longer strings often mean the IUD is descending and needs evaluation.
Is it safe to have sex if I suspect the IUD might be moving?
Avoid sex until you have been examined, because pregnancy can occur very quickly once the device is no longer properly positioned. Using a backup contraceptive method, such as condoms, is recommended if expulsion is suspected.
How often does an IUD fall out in people who have had children versus those who have not?
Expulsion is more common in people who have not had children and in those who have recently given birth or had an abortion. Discussing individual risk factors with your clinician helps set realistic expectations and guide method selection.