Hormonal vs copper IUDs – which is right for you?
Both hormonal coils (such as a Mirena), and copper coils are small T-shaped plastic devices which are inserted into the uterus to prevent pregnancy. Both methods of contraception are over 99% effective and long-lasting; so may be good options if you don’t want to have to remember to do something every day. Neither coil will affect your fertility – meaning it’s possible to get pregnant straight after removal.
These two different types of coils are often thought to be the same. However, there are important differences which can help you decide which method is best for you.
Pros and cons of two IUDs
The copper coil is an intrauterine device (IUD) which releases copper to protect against pregnancy for 5-10 years, depending on the type. With this method, there are no hormonal side effects. However, your periods may be heavier, longer, or more painful.
The hormonal coil is an intrauterine system (IUS) which can protect against pregnancy for 3-6 years, depending on the brand (Mirena is one of the most popular). It works by releasing small amounts of the hormone progestogen and may be a good alternative if you cannot use the combined pill (for example, due to migraines).
It may also make your periods lighter, shorter or stop meaning it could help if you suffer from heavy or painful periods. The hormonal coil may also benefit those with endometriosis. This method is increasingly popular, but some people experience hormonal side effects such as mood swings, skin problems or breast tenderness.
How are they inserted?
Use of either the hormonal or copper coil involves a procedure to insert the device into the womb. This procedure can be uncomfortable, but pain relief is recommended and should be available. This can include a local anaesthetic gel and/or injection. It is also recommended that you take painkillers, such as ibuprofen, an hour before the procedure to help with cramps.
Written by Rachael Moore.
