What should you know about a 10-year copper coil?

The device sits inside the uterus and gradually releases copper. Copper interferes with sperm movement and fertilisation, so it works without releasing contraceptive hormones. The phrase 10-year refers to the approved duration for a particular device, not a promise that every person should keep it for that entire period. A clinician can remove it earlier if you want pregnancy, prefer another method or develop troublesome bleeding.

Periods may become heavier, longer or more crampy after insertion, especially while your body adjusts. The coil does not protect against sexually transmitted infections, so condoms may still be useful depending on your situation.

Tell the clinician about your periods, pregnancy possibility, pelvic symptoms, medicines and any previous coil experience. During insertion, you may feel cramping; agree beforehand how you would like discomfort managed. Keep the follow-up advice and learn how to check for the threads if your clinician recommends this. Record the planned replacement or review date, even if the device is intended for long-term use.

Seek advice if bleeding or pain is difficult to manage, or if you cannot feel the threads and are concerned. Do not try to remove the device yourself. If you want to switch to a hormonal method, discuss the timing so contraceptive protection is not unintentionally interrupted.

Contact a healthcare professional promptly for severe or worsening lower-abdominal pain, fever, unusual-smelling discharge, very heavy bleeding, dizziness or a positive pregnancy test while the coil is in place. Urgent assessment is especially important with sharp one-sided pain, fainting or shoulder-tip pain, because pregnancy with an intrauterine device needs prompt review.

Ask which device you are being offered, how long it is approved for, when it should be checked or replaced, and what bleeding pattern is expected. You can also ask how insertion pain will be managed, what to do if the threads change, and which symptoms should lead you to call the clinic.