Please see the topics covered on this page:
- What is intrauterine contraception?
- What types do you offer?
- Possible side effects
- Duration of use
- Copper Intrauterine Device (Cu-IUD or “Copper Coil”)
- Levonorgestrel intrauterine device (LNG-IUD or ‘hormonal coil
- During the procedure
- What to expect
- FAQs
What is intrauterine contraception?
Intrauterine contraception (the “coil”) is a highly effective, long-acting method of contraception. It involves placing a small device inside the uterus to prevent pregnancy. Some types can also help reduce heavy menstrual bleeding and may be used as part of Hormone Replacement Therapy (HRT).
You do not need to be registered with our practice to have a coil fitted, whether for
contraception or HRT. As part of our enhanced contraceptive service, you can register with us specifically for this care, and—with your consent—we can inform your usual GP practice.
We are an experienced team of four clinicians who fit coils, with short waiting times. We understand that having a coil fitted can feel daunting for most people. Our clinicians are experienced in supporting patients through the procedure with care and sensitivity.
We fit coils for individuals of all ages, including those who have not had children.
To help make the procedure as comfortable as possible, we routinely use local anaesthetic to numb the cervix.
If you would like to book an appointment or discuss whether a coil is right for you, please contact the practice.
Levonorgestrel intrauterine device (LNG-IUD or ‘hormonal coil’)
The hormonal coil works by releasing a small amount of hormone into the womb. This thins the lining of the uterus, making it difficult for a fertilised egg to implant, and thickens the cervical mucus, which makes it harder for sperm to reach an egg.
Depending on the type, it can last between 3 and 8 years.
In addition to preventing pregnancy, hormonal coils can:
- Help reduce heavy menstrual bleeding
- Improve period pain
- Be used as part of Hormone Replacement Therapy (HRT) (for certain types)
Possible side effects
During the first few months after fitting, some people may experience:
- Hormonal symptoms such as mood changes, breast tenderness, or acne
- Changes in bleeding patterns (this is common), usually becoming lighter and less
frequent over time.
These side effects typically settle within a few months as your body adjusts.
If you have any concerns about side effects or how you are feeling after your coil fitting, we are always happy to discuss this with you.
Duration of use
For contraception, if you are under age 45:
- Mirena – 8 years
- Kyleena – 5 years
If you are 45 years or older and have a Mirena inserted for contraception then this can be used up until age 55 when contraception is no longer required.
If you use a Mirena device as part of hormone replacement therapy (HRT) this will need to be changed 5 yearly.
- If you are 45 years or older and have a Mirena inserted for contraception then this can be used up until age 55 when contraception is no longer required.
- If you use a Mirena device as part of hormone replacement therapy (HRT) this will need to be changed 5 yearly.
More information please click on the below link:
www.contraceptionchoices.org/ContraceptionChoices/Contraception-Methods/hormonal-coil-lng-iud
Copper Intrauterine Device (Cu-IUD or “Copper Coil”)
The copper coil is a highly effective, long-acting, non-hormonal method of contraception. It is a small, T-shaped device with copper wrapped around it.
Copper is toxic to sperm, preventing them from reaching an egg. It may also prevent a fertilised egg from implanting in the uterus.
Depending on the type, a copper coil can last between 5 and 10 years.
Benefits
- Hormone-free – suitable if you prefer or cannot use hormonal contraception
- Long-lasting and highly effective
- Can also be used as emergency contraception if fitted within 5 days of unprotected sex
Things to consider
Because the copper coil does not contain hormones:
- You will not experience hormonal side effects
- Your natural menstrual cycle continues
Some people may notice:
- Heavier or longer periods
- Increased period pain, particularly in the first few months
These symptoms often improve over time.
Types of copper coils we offer
We currently provide:
- NOVA T 380 – effective for 5 years
- T-Safe 380A QL – effective for 10 years
Duration of use
If you are under 40
- NOVA T 380: licensed for 5 years
- T-Safe 380A QL: licensed for 10 years
If you are aged 40 or over:
Any copper coil fitted in the UK can usually be relied upon for contraception until age 55, when contraception is no longer needed, or until menopause is confirmed if this occurs sooner.
If you are unsure which option is right for you, our clinicians will be happy to discuss this and help you choose the most suitable method.
More information please click on the below link:
www.contraceptionchoices.org/ContraceptionChoices/ContraceptionMethods/copper-coil-iud
What happens during the fit?
Before your appointment
We will always arrange an initial consultation before fitting a coil. This allows us to:
- Check that it is safe and suitable for you
- Discuss the different types of coil and help you choose the right one
- Answer any questions you may have
- Explain the fitting procedure in detail. We will also offer a screening test for sexually transmitted infections (STIs) as part of your care.
Your fitting appointment
When you attend for your fitting:
- The clinician (nurse or doctor) will ask a few final questions to ensure it is still safe to proceed and answer any questions.
- Discuss the type of coil suitable for you
- Sometimes ask for a pregnancy test if needed
- A chaperone will always be present during the procedure
- We routinely use local anaesthetic to numb the cervix and reduce discomfort
We will talk you through each step so you know what to expect.
During the procedure
- A chaperone will always be present during the procedure
- We routinely use local anaesthetic to numb the cervix and reduce discomfort
- We will talk you through each step so you know what to expect.
- You will lie down with your knees up
- The clinician will examine your cervix
- A speculum is inserted to keep the vagina open
- The coil is measured to fit your womb safely
- The coil is gently inserted through the cervix into the womb
- Strings are trimmed so you can feel them inside the vagina (used to check placement) The whole procedure usually takes only a few minutes.
What to expect
The fitting procedure is explained in this video:
Frequently Asked Questions (FAQs)
How to book an appointment?
To arrange an appointment, you can:
- Call reception on 01273 249049, or
- Complete an eConsult request to book an initial nurse appointment
At your first appointment, we will discuss your options and, if appropriate, arrange a follow-up appointment for the coil fitting.
If you are not registered with the practice.
You do not need to be registered with Sussex University Surgery to use this service.
Please call reception, and our team will:
- Register you for contraceptive services, and
- Arrange your appointment
If you are unsure which option to choose, our reception team will be happy to guide you
Is the device fitting painful? What pain relief do you offer?
Everyone’s experience of coil fitting is different. Some people have very little discomfort, while others may experience cramping during and after the procedure.
To help minimise discomfort, we recommend:
- Taking ibuprofen 400 mg around 1 hour before your appointment (or paracetamol if you cannot take ibuprofen)
During the fitting
- The procedure can feel uncomfortable, but it is usually brief
- We routinely use a local anaesthetic (numbing spray) on the cervix to help reduce pain
- You are always in control — you can ask us to pause or stop the procedure at any time
After the fitting
It is common to experience:
- Cramping (similar to period pain)
- Light bleeding or spotting for a few days
This can usually be managed with over-the-counter pain relief.
Some people prefer to keep the rest of the day free after their appointment so they can rest if needed.
Tips to help you feel more comfortable
Relaxation techniques can make a real difference. Mindful breathing during the procedure may help reduce anxiety and discomfort.
You may find this short video on box breathing helpful:
If you have any concerns about pain or the procedure, please let us know—we are here to support you and make the experience as comfortable as possible.
How is the device removed?
Removal of both hormonal and copper coils is usually a quick and straightforward procedure carried out by a trained doctor or nurse.
During the appointment:
- A speculum is gently inserted (similar to a smear test)
- The clinician locates the threads and carefully removes the device
- The procedure usually only takes a few minutes.
Most people experience only mild discomfort, similar to brief period cramps.
Before your appointment
You can have your coil removed at any time. However, to avoid the risk of pregnancy:
- Use condoms or avoid sex for 7 days before removal.
You do not need to wait until your device has expired to have it removed
If the threads are not visible
In some cases, the threads cannot be seen at the cervix. If this happens:
- It may not be possible to remove the coil at that appointment
- You may need an ultrasound scan or referral for specialist removal
Replacing your coil
If you would like a new coil.
This can often be removed and replaced in the same appointment.
If your current device is still in date, replacement can be done at any time, provided:
- You have not had sex for 7 days before the appointment, or
- You have used condoms reliably for 7 days. This is because, occasionally, it may not be possible to fit a new device immediately after removal, which could result in a risk of pregnancy if you have had sex in the previous week.
Planning a pregnancy
If you are having your coil removed because you would like to become pregnant:
- We recommend starting folic acid as soon as possible
- This helps support healthy development in the very early stages of pregnancy
What to expect
You can watch this short video explaining coil removal:
If you have any questions or concerns about removal or replacement, our team will be happy to discuss these with you.
Can a coil move or become out of place?
It is uncommon, but a coil can occasionally move or become displaced.
Each coil has two thin threads that pass through the neck of the womb (cervix) and sit at the top of the vagina. These threads allow you (and your clinician) to check that the coil is still in place.
You will be shown how to feel for the threads yourself. This can take a little practice, so don’t worry if you cannot feel them straight away.
When to seek advice
If:
- You cannot feel the threads, or
- The threads feel shorter or longer than before, or
- You are concerned the coil may have moved
You may not be fully protected against pregnancy.
Please:
- Contact the practice as soon as possible to arrange a check
- Use additional contraception (such as condoms) until the coil has been checked
If you have any concerns at all, it is always best to get in touch—we are happy to help and provide reassurance.
Can people who have not had a baby have a coil fitted?
Yes — in most cases, people who have not had a baby can safely have a coil fitted.
In the past, coils were more commonly fitted in those who had previously given birth. However, modern devices are smaller and easier to insert, so this is no longer usually a limitation.
Our clinicians are experienced in fitting coils for people who have not had a baby, and we will always assess your individual situation to make sure it is suitable for you.
If you have any concerns about whether a coil is right for you, we are happy to discuss this and answer any questions.
What are the risks of having a coil fitted?
Coils are generally very safe, but like any medical procedure, there are some risks.
Common risks
- Cramps or period-like pain for a few days after fitting
- Light bleeding or spotting in the days following the procedure
These are usually mild and settle quickly.
Rare risks
- Infection –
▪ There is a small risk of infection within the first 20 days after fitting (around 1 in 100 people)
▪ Contact us—or use NHS 111 if out of hours—if you develop:
▪ Persistent lower abdominal pain
▪ High temperature
▪ Smelly vaginal discharge
▪ Increased bleeding
- Pregnancy
▪ The risk of pregnancy in the first year is less than 1 in 100
▪ If pregnancy occurs with a coil in place, there is a chance it could be ectopic
(outside the womb, usually in the fallopian tube), which can be dangerous
▪ If you suspect pregnancy, take a test and contact us immediately for a scan and
referral to gynaecology - Perforation of the womb (very rare)
▪ Occurs in approximately 1 in 1,000 people
▪ The coil can make a tiny hole in the womb or cervix
▪ May cause pain, although sometimes there are no symptoms
▪ Severe or persistent lower abdominal pain after fitting should be checked
▪ If perforation occurs, surgery may be required to remove the coil
How to monitor your coil
- You are encouraged to check the threads of your coil regularly to ensure it is still in place
- If you cannot feel the threads, or if something feels different, contact us promptly
If you have any concerns about risks or experience unusual symptoms, our team is here to provide support and advice.
Can I exercise after a coil fit?
We recommend resting on the day of your coil fitting, even if you are usually active. This allows your body to recover comfortably.
After this initial rest, there are no restrictions—you can return to your usual exercise and activities as normal.
How soon after a coil fit can I have sex?
- We recommend avoiding any penetrative vaginal sex for the first 3–4 days after fitting to reduce the risk of infection.
▪ This includes avoiding insertion of fingers or sex toys. - Hormonal coils may take up to 7 days to become fully effective. Your clinician will
explain when it is safe to rely on the coil for contraception. - If you experience pain during sex while your coil is in place, please contact us for advice.
Will my partner feel the coil threads during sex?
Not usually. If this is an issue, you can get your doctor or nurse to check your coil is in place. If your partner puts fingers inside your vagina, they should be able to feel the threads. This is often useful for a thread check if you are unable to feel them for yourself.
If I have a coil, can I use tampons, a moon cup or sanitary pads?
Generally, none of these are a problem with either type of coil. However, there is some evidence that moon cups can slightly increase the risk of your coil coming out. We advise to only use a sanitary pad for the first few days.
Can I bring someone with me to my appointment?
You are welcome to bring someone with you for support.