Pre-wound copper coils: what to know

A copper coil is a small device placed inside the womb for contraception. It releases copper locally, which interferes with sperm movement and fertilisation. It does not contain hormones. Some people notice stronger cramps or heavier, longer periods after fitting, while others have little change. A copper IUD Device page explains the device and its materials in more detail.

The phrase pre-wound may refer to a device prepared on its insertion system before placement. It does not describe a separate contraceptive method. Your clinician should confirm the exact device, its expected duration, and whether it suits your health history.

Tell the clinician about a late period, possible pregnancy, unusual discharge, pelvic pain, heavy bleeding, allergies, medicines, and previous coil experiences. Ask what pain relief is suitable for you and whether you need infection or pregnancy checks. Plan practical support if you expect cramps afterwards. Keep the follow-up instructions and learn how to check the threads if your clinician recommends it.

If you are comparing options, a Hormonal Coil releases a progestogen instead of copper and may affect bleeding differently. The choice depends on your goals, symptoms, and medical history.

Contact your clinician promptly for worsening pelvic pain, fever, unusual or bad-smelling discharge, very heavy bleeding, dizziness, or concern that the coil has moved or come out. Seek urgent help for severe pain, fainting, or heavy bleeding with weakness. A missed period or pregnancy symptoms after fitting also need medical advice because a pregnancy with a coil in place requires assessment.

Is this device suitable for my periods and medical history? What should I expect during and after fitting? How will I know the coil is in place, and when should I return for review?