Copper IUD - meaning and definition
AlsoIUDCu-IUDcopper coilthe coilnon-hormonal IUDintrauterine deviceParagardcopper Tnon hormonal coil
Not yet reviewed by a clinician. This health entry was written from the public-health sources listed below and is general information only. It is not medical advice.
Definition
A copper IUD is a small T-shaped device with copper that is placed in the uterus and prevents pregnancy without hormones for five to ten years.
At a glance
- It is a small T-shaped device with copper, placed in the uterus.
- It contains no hormones and lasts five to ten years.
- It is more than 99% effective and works from the moment it is fitted.
- It is the most effective emergency contraception when fitted within five days of unprotected sex.
- Periods may become heavier, longer or more painful, especially in the first months.
In detail
Copper creates an environment in the uterus that is toxic to sperm and eggs, stopping fertilisation. It is more than 99% effective and works from the moment it is fitted.
It is also the most effective form of emergency contraception when fitted within five days of unprotected sex, and it can then stay in as ongoing contraception. Periods may become heavier, longer or more painful, particularly in the first few months. It does not protect against infections.
In a sentence
- I chose the copper IUD because I wanted something long-term without hormones.
- The pharmacist mentioned that a copper IUD could be fitted as emergency contraception.
Where the word comes from
IUD stands for intrauterine device, meaning a device placed within the uterus. The copper IUD is also known as the coil in some countries.
Not to be confused with
- Hormonal IUD
A hormonal IUD releases a progestogen and often makes periods lighter.
Common questions
Can a copper IUD be used as emergency contraception?
Yes. It is the most effective form of emergency contraception when fitted within five days of unprotected sex, and it can then stay in as ongoing contraception. A sexual health service can arrange fitting quickly.
Does the copper IUD protect against STIs?
No. It prevents pregnancy but does not protect against infections, so condoms are still needed for that.
Related terms
Sources
- NHSIUD (intrauterine device)
- Planned ParenthoodIUD