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Contraceptive implants such as Nexplanon and intrauterine devices (IUDs) have turn into popular choices for long-term birth control in the UK, with many women appreciating their ease of use and effectiveness. But, there is a growing concern regarding the potential for these devices to migrate or become lost within the body, which can lead to serious health complications. This article explores how these devices can move unexpectedly and the critical signs that may indicate a problem.
The Nexplanon implant, a small rod about the size of a matchstick, is inserted under the skin of a woman’s upper arm and releases the hormone progestogen to prevent ovulation. Approximately 400,000 women in the UK use this form of contraception, which is designed to last for up to three years. Although many users report positive experiences with the implant, instances of migration have raised alarms among healthcare professionals and patients alike.
For instance, Victoria Stephens, a 28-year-old retail assistant from Gosport, initially found her Nexplanon implant to be ‘perfect.’ She enjoyed its benefits, including the absence of periods and the convenience of not needing to remember daily pills. However, after a few years, she discovered that her implant had become lodged deep within her arm, leading to a surgical procedure for its removal. Such cases highlight the critical need for awareness regarding the potential risks associated with contraceptive implants.
Understanding Device Migration
Migration of implants can occur due to improper insertion techniques or anatomical variations among patients. Research indicates that at least 126 women in the UK have reported issues with migrating Nexplanon implants since its approval in 2010, with some experiencing life-threatening complications. Notably, 18 of these women required emergency treatment when their devices became lodged in or around critical areas such as the lungs.
In December 2025, a report detailed a case where a woman needed surgery after her Nexplanon implant migrated from her arm to her pulmonary artery. Such instances, while considered rare, showcase the potential dangers associated with these devices. Dr. Kathryn Clement, a consultant gynaecologist, notes that problems typically arise when the implant is mistakenly placed in a blood vessel rather than under the skin, allowing it to travel through the bloodstream.
Impacts of IUD Migration
Similar concerns are observed with IUDs, or coils, which are designed to be placed within the uterus. Migration of these devices can lead to severe complications, including appendicitis, bowel obstruction and even life-threatening infections like sepsis. According to NHS statistics, migration occurs in approximately one or two cases per thousand patients, which translates to a significant number of women given that about 700,000 IUDs are currently in use in the UK.
In one notable case, a woman from Essex discovered she was 22 weeks pregnant after losing track of her IUD. Investigations revealed that the device had not been properly placed, resulting in a distressing situation for her and her family. Such cases underscore the importance of regular checks and consultations with healthcare providers regarding the status of these devices.
What to Watch For
Women using contraceptive implants or IUDs should be vigilant about monitoring their devices. Signs that may indicate a problem include:
- Inability to locate the device via normal examination.
- Unusual pain or discomfort in the area of insertion.
- Changes in menstrual patterns, such as the return of periods after a period of absence.
- Signs of infection, such as fever or unusual discharge.
Healthcare professionals recommend that patients be educated about how to check for their implants immediately after insertion and to perform regular self-examinations. This proactive approach can catch potential issues early and mitigate serious complications.
Conclusion
While contraceptive implants and IUDs offer effective birth control solutions, their associated risks necessitate ongoing patient education and awareness. Women like Victoria Stephens serve as crucial reminders of the importance of understanding potential complications and recognizing warning signs. As healthcare providers continue to refine insertion techniques and improve patient education, it is essential for users to remain informed and proactive about their health.
For those considering or currently using these devices, regular consultations with healthcare providers can help ensure safety and effectiveness. If you have experiences or questions regarding contraceptive implants, feel free to share your thoughts in the comments below.
Please note that this content is informational and not a substitute for professional medical advice.