Hormonal coil (IUS)

What the packet says

What is it?

How it 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.

How does this compare?

Frequency

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

Similar to

Clinical effectiveness

99% if used perfectly

What does this mean?

Contains hormones

  • Yes
  • No
What does this mean?

What you said

These stats are based on 272 reviews

Side Effects

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After Effects

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Moods & Emotions

Periods

Body Weight

Sex Drive

Reviewer data

Time Taken

Age of Reviewers

Reviewers had children

Reviewers currently using

Detailed information

How to get started

Women ask us lots of questions about getting a 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 infections or STIs.
  • Your 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 will normally go back for a check up 3-6 weeks after getting it fitted.

How to stop

  • Your coil can be removed at any time by a trained doctor or nurse. It’s simpler than having it fitted – they will use a  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 or another method.
  • Check out our survey results to see how long it took most women’s cycles to return to their definition of ‘normal’ and read up about other after effects they’ve experienced.

Things that can go wrong

  • There’s a small risk of infection after it’s been fitted. This may occur when harmless bacteria normally found in vagina are pushed inside the womb. You’ll know it’s infected if you have unusual discharge, there’s a strong smell, or you develop a high temperature or chills.
  • Around 1 in 20 coils can fall out or be pushed out by the womb, this is most common in the first few weeks of getting it fitted, or during a period. If this happens, head to your doctor or nurse to get a check up.
  • 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.
  • Very occasionally the threads get lost. This happens to about 1 in 100 women, and 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.
  • Even more occasionally (1 in 1000 chance) the coil goes through the wall of the womb into the abdomen. This is called ‘perforation’ and it this happens, they can remove the coil via surgery.

Reviews

Hormonal coil (IUS)

- Jaydess

I changed from the pill to the coil and saw nothing but a huge improvement in my mood. Initially I did break out but this clear…

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Hormonal coil (IUS)

- Mirena

Over time the cramps have lessened but they were really bad (couldn’t go to work) for the first 2 days after having the I…

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Hormonal coil (IUS)

- Mirena

Changed my life! I know a lot of women have very different experiences with the coil, but apart from the (somewhat traumatic) e…

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Hormonal coil (IUS)

- Mirena

I was on Mirena for one month. I noticed most of my side effects when I got it removed, and I had the hormonal Mirena crash.Read more

Hormonal coil (IUS)

- Mirena

It was a rough three months after I got the coil inserted, and I struggled particularly with a 3 month, painful , non-stop peri…

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Hormonal coil (IUS)

- Mirena

The Mirena is new to me having only had it in for just over a month so I’m still adjusting and will review again once the 6 m…

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Hormonal coil (IUS)

- Mirena

Being 21 currently, with high blood pressure from aged 12 and previously negative experience with the PO pill, I found the coil…

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Hormonal coil (IUS)

- Mirena

Awful acne to the point it hurt to smile and talk. Very deep under the skin spots. I never normally suffer with acne. My mood w…

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Hormonal coil (IUS)

- Mirena

Having my first and second IUS inserted was agonising for me (I have a tilted cervix and twisted “canal”). However on my se…

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