Copper IUD

Long-Acting Reversible Contraception

Copper IUD

A copper intrauterine device (IUD) is a small, T-shaped device made of plastic and wrapped with copper wire that is inserted into the uterus as a form of long-acting reversible contraception. The copper IUD is a hormone-free contraceptive option that relies on the natural spermicidal properties of copper to prevent pregnancy. It has an efficiency of over 99% and prevents pregnancy for up to 10 years.


The copper IUD is inserted into the uterus during a simple procedure, where the cervix is gently dilated, and the IUD is placed in the uterus using an applicator. This usually takes around 15 minutes.

Once inserted, the copper IUD releases copper ions into the uterus, which creates an environment that is toxic to sperm, inhibiting their movement and preventing fertilisation. It also affects the lining of the uterus, making it less receptive to implantation. Minera is a good alternative suitable for women who cannot or prefer not to use hormonal contraception.

Increased menstrual flow and slightly more painful periods are side effects sometimes experienced during the first few months of copper IUD use. Although menstrual patterns generally return to normal over time, this contraceptive device may not be suitable for women who already experience heavy or painful periods.

For individualised contraceptive guidance, contact the experienced team at The Butterfly Clinic to book an appointment.