Hormonal coil (IUS)

What the packet says

What is the Hormonal coil (IUS)?

How the Hormonal coil (IUS) works

The hormonal coil is a small, T-shaped plastic device that is inserted into your womb by a doctor or nurse. It releases the hormone progestogen gradually into your womb which prevents pregnancy by making the fluid in your cervix thicker (which makes it more difficult for sperm to enter the womb), and preventing the lining of your womb thickening enough for an embryo to grow in it. Sometimes it can also stop you ovulating.

Hormonal coil (IUS) side effects

  • Womb Cramps
  • Tender Breasts
  • Vaginal Discharge
  • Spots or acne
  • Headaches

Frequency

  • During intercourse
  • Daily
  • Monthly
  • 1 - 3 Months
  • 1 - 3 Years
  • 3 - 5 Years
  • Permanent
  • Similar to

    Typical effectiveness

    99.8

    %

    Contains hormones

    Yes

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    Reviews

    5/5
    16/05/2021
    Hormonal coil (IUS)

     –

    Mirena
    The IUS is the best form of contraception I’ve tried. I have recommended it to 6 friends who have had one inserted too...
    4/5
    15/05/2021
    Hormonal coil (IUS)

     –

    Mirena
    Approaching the end of my coil, it was mostly good but I had a huge drop in libido in the last year, I also experienced ...
    5/5
    14/05/2021
    Hormonal coil (IUS)

     –

    Mirena
    I have just had my Mirena coil fitted and I wanted to write a review to dispel what others have said. I did not feel a t...
    5/5
    14/05/2021
    Hormonal coil (IUS)

     –

    Kyleena
    I’ve just come from my IUS fitting so I can’t comment on the long term side effects yet, but I wanted to rev...
    4/5
    13/05/2021
    Hormonal coil (IUS)

     –

    Mirena
    Ask the doctor to cut the strings as short as they can – mine were left long and would hurt my partner during sex....
    3/5
    12/05/2021
    Hormonal coil (IUS)

     –

    Jaydess
    I’ve had my Jaydess IUS for 2 years, It definitely has it’s advantages, such as being able to not worry about takin...

    What you said

    Side effects

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    After effects

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    Moods

    Periods

    Body weight

    Sex drive

    Reviewer data

    Time taken

    Age of Reviewers

    Reviewers had children

    Reviewers currently using

    Detailed information

    How to get started with the hormonal coil

    Women ask us lots of questions about getting a contraceptive coil fitted – so we’re working on everything you ever wanted to know about the coil to help cover everything. If you want anything in particular covered, please contact us at info@theldown.com. In the meantime, we’ve summarised a few key points below:

    • To get a coil fitted you need to go to a GP surgery or sexual health clinic where some staff are trained to fit them. You can contact your GP and ask if they fit coils, or search for clinics that fit coils here.
    • The coil can be fitted at any time during your monthly period cycle, as long as you’re not pregnant (although you may prefer to get it fitted when you’re not on your period).
    • Your doctor or nurse will do some tests to make sure that you can have the coil – like making sure that you’re not pregnant and checking for STIs.
    • During your coil fitting, a doctor or nurse will use a speculum (like when you have a smear test) to open up your vagina and then insert the coil through the cervix into the womb. Most women find this uncomfortable.
    • If it’s fitted in the first seven days of your cycle, you’ll be protected against pregnancy straight away. If it’s fitted at any other time, you’ll need to use condoms or other contraception, for seven days afterwards.
    • You may be asked to go back for a check up 3-6 weeks after getting it fitted. You will also be taught how to feel the threads which hang down through the neck of the womb into the top of the vagina – this is how you know the coil is in place.

    How to stop using an IUS

    • Your coil can be removed at any time by a trained doctor or nurse. It’s normally simpler than having it fitted – they will gently pull on the threads and the T shape folds up and it can be pulled out of the womb.
    • If you’re not having another coil put in and don’t want to get pregnant, you’ll need to make sure you don’t have sex seven days before you have it removed, or use condoms. Alternatively speak to your doctor or nurse about switching to another method.
    • Check out our survey results to see how other women found their experiences with the hormonal coil.

    Things that can go wrong

    • There’s a small risk of infection after the coil has been fitted which may lead to pelvic inflammatory disease (PID). Contact your doctor if you have unusual or smelly discharge, abdominal or pelvic pain, a high temperature or chills. 
    • Sometimes coils can fall out, be pushed out of the womb or move. This is most common in the first few weeks after getting it fitted, or during a period. You may not know this has happened so it is important to check your coil threads regularly. If you cannot feel the threads or are worried your coil has fallen out or moved, contact your doctor or nurse and use condoms or avoid sex until then. 
    • Very occasionally the threads get lost. This is more commonly caused by the threads being pulled up inside into the cervix. They may notice this when you go to have the coil removed, and sometimes the threads can reappear naturally.
    • If the coil doesn’t work and you get pregnant, there’s also a small increased risk of ectopic pregnancy – when the egg implants outside the womb, normally the fallopian tubes. However, the overall risk of ectopic pregnancy is less in women using a coil than in women using no contraception at all.
    • Rarely the coil may go through the wall of the womb when it is put in. This is called ‘perforation’ and if this happens, you may need surgery to remove the coil.

    Thanks for telling us you're interested in talking to other Lowdown users. If you have any other ideas for ways we can improve the site, please email info@theldown.com

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    Thanks for telling us you're interested in talking to other Lowdown users. If you have any other ideas for ways we can improve the site, please email info@theldown.com

    If you'd like to report a review for not adhering to our Review guidelines, please email info@theldown.com with a link to it and we'll take look!

    Thanks for telling us you're interested in talking to other Lowdown users. If you have any other ideas for ways we can improve the site, please email info@theldown.com

    If you'd like to report a review for not adhering to our Review guidelines, please email info@theldown.com with a link to it and we'll take look!

    Thanks for telling us you're interested in talking to other Lowdown users. If you have any other ideas for ways we can improve the site, please email info@theldown.com

    If you'd like to report a review for not adhering to our Review guidelines, please email info@theldown.com with a link to it and we'll take look!

    Thanks for telling us you're interested in talking to other Lowdown users. If you have any other ideas for ways we can improve the site, please email info@theldown.com

    If you'd like to report a review for not adhering to our Review guidelines, please email info@theldown.com with a link to it and we'll take look!

    Thanks for telling us you're interested in talking to other Lowdown users. If you have any other ideas for ways we can improve the site, please email info@theldown.com

    If you'd like to report a review for not adhering to our Review guidelines, please email info@theldown.com with a link to it and we'll take look!