What Should You Know About a Copper Coil?

A copper coil is a small, hormone-free contraceptive device placed inside the womb to prevent pregnancy for several years, with fitting and removal carried out by a trained healthcare professional. It is also called a copper intrauterine device, or copper IUD. The phrase “copper pipe coil” may refer to this device, rather than a pipe-shaped treatment.

The device releases copper inside the womb. This creates an environment that interferes with sperm movement and fertilisation. It does not contain contraceptive hormones, and fertility generally returns after removal. A copper coil does not protect against sexually transmitted infections, so condoms may still be useful when infection protection is needed.

Periods may become heavier, longer, or more crampy after fitting, particularly during the first few cycles. Some people have spotting or cramps soon after the procedure. These changes can be manageable, but a copper coil may not suit someone whose periods are already difficult or who has certain womb or pelvic conditions.

Before fitting, a clinician will discuss your health, pregnancy possibility, bleeding pattern, and infection risk. They may examine the pelvis and explain pain-relief options. During fitting, the device is guided through the cervix into the womb; the appointment is usually brief, although cramping can occur.

Afterward, follow the clinician’s instructions and notice how your bleeding and pain change. The coil has threads that pass through the cervix, which can be checked if you have been shown how. Do not pull the threads. If you are considering a non-hormonal option, you can compare it with a [Copper IUD Device](/materials/copper-iud-device/) or discuss a [Hormonal Coil](/treatments/contraception-and-family-planning/hormonal-coil/).

Contact a healthcare professional promptly if you develop severe or worsening lower-abdominal pain, fever, unusual or unpleasant-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. If a pregnancy test is positive while the coil is in place, obtain medical advice promptly because the pregnancy needs assessment.

Ask whether your bleeding pattern or medical history makes a copper coil suitable, what pain-relief choices are available for fitting, when contraception becomes effective, how long the device is intended to remain in place, and what symptoms should prompt a review. You can also ask how removal works and which alternative would fit your priorities if heavier periods are a concern.