Before you have a coil fitted, you may be tested for any existing infections, such as STIs, so that any infections can be treated beforehand.

The coil can be fitted at any time during your monthly menstrual cycle, as long as you're definitely not pregnant.

Having a coil fitted can be uncomfortable and painful but the pain shouldn't last long and is described as quite similar to period pains. A fitting is likely to be less painful if you have had natural birth (vaginal delivery) as your cervix will have previously been stretched.

Whilst you lie down, with your knees bent, a speculum will be used to hold your vagina open (the same instrument is used when having a smear test done). Local anaesthetic gel is applied to the cervix and this feels cold.

The clinician will then use forceps to hold the cervix steady in order to determine the size and position of your womb with a sterile probe.

The coil comes with its arms folded down packed inside a narrow tube. The clinician will insert the tube into the vagina, through the cervix and into your uterus (womb).

Then they will pull the plastic tube out, leaving the coil in place allowing the arms of the coil to fold open. Before the speculum is removed, the strings of the coil are cut, leaving 1 to 2 cm hanging down at the top of your vagina so that you can feel to make sure it is still in place.

The whole process should take about 5 minutes.

People normally have some cramping pain afterwards so it is recommended you take some pain killers just before your appointment.

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The IUD works for contraception immediately after it is fitted.

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Having a coil fitted can be uncomfortable and painful but the pain shouldn't last long and is described as quite similar to period pains. A fitting is likely to be less painful if you have had natural birth (vaginal delivery) as your cervix will have previously been stretched.

The clinician doing the fitting will use a speculum to hold your vagina open (the same instrument is used when having a smear test done). Local anaesthetic gel is applied to the cervix and this feels cold.

Read more about the coil fitting process.

Occasionally people feel nauseous or faint afterwards. They may need to lie down for 5-10 minutes but are usually fine after a short while. The clinician will always make sure you are recovered and happy to make your way home before letting you leave.

Some people prefer to have no plans after their appointment so that they can be relax at be comfortable at home afterwards.

It is fairly common for women to experience some slight cramping and / or spotting for a couple of days after a fitting. You will be asked to make an appointment after 6 weeks where the clinician will check your coil is in place and to see how you are getting on.

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Once an IUD is fitted, it will need to be checked by a doctor after three to six weeks to make sure everything is fine. Speak to your GP or clinician if you have any problems after this initial check or if you want the IUD removed.

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A coil can be removed at any time by a trained doctor or nurse.

If you're not going to have another coil put in and you don't want to get pregnant, use another method (such as condoms) for seven days before, as sperm can live for up to seven days inside the body.

Removal of a coil is a very quick procedure (about 30 seconds). It may be a little uncomfortable but is much less uncomfortable than the fitting procedure.

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Yes, the IUD is suitable for women who are breastfeeding, though you will need to wait four to six weeks after giving birth before you have it fitted.

Some services offer the option to have an IUD fitted immediately after delivery. This is called a post-partum IUD fitting.

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There is a very small risk of infection. If you have any of the following symptoms within a few days of having an IUD fitted, you should see your GP (or clinician who fitted the IUD) straight away:

• Have pain in your lower abdomen
• Have a high temperature
• Have a smelly discharge.

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There's no evidence that having an IUD will increase the risk of cervical cancer, cancer of the uterus orovarian cancer.

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There is a very small chance of you getting an infection during the first 20 days after an IUD is put in. You may be advised to have a check for any possible existing infection before an IUD is fitted.

There is a very rare risk that an IUD might make a tiny hole in the womb or neck of the womb (cervix) when put in. This may cause pain but often there are no symptoms. Contact your GP straight away if you feel a lot of pain in the lower abdomen after having an IUD fitted. If there is a suspected perforation, go to A&E to see a specialist. If perforation occurs, you may need surgery to remove the IUD.

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Although it is unlikely that you would become pregnant while the IUD is fitted, if you do, there is a small increased risk of you having an ectopic pregnancy. The risk of ectopic pregnancy is less in women using an IUD than in women using no contraception at all.

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The coil can be pushed out by your uterus or it can move. This is not common. This is more likely to happen soon after it has been put in. This is why your doctor or nurse will teach you how to check your coil threads every month and also arrange to check it for you 6 weeks after your fitting.

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IUD may not be suitable for you if you have or have had:

• Problems with your womb or cervix or unexplained vaginal bleeding between periods or after sex
• An untreated STI or pelvic infection
• Women who have had an ectopic pregnancy, or who have an artificial heart valve, need to consult their GP or clinician before having an IUD fitted.

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If you're 40 or older when you have the IUD fitted, it can be left until you reach menopause or you no longer need contraception.

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No, the IUD will not set off airport security metal detectors.

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The non-hormonal coil IUD releases copper that creates an environment where sperm do not survive.

The hormonal coil IUS releases a progestogen hormone, which thickens the mucus from the cervix (opening of the womb), making it harder for sperm to move through it and reach an egg. It also causes the womb lining to become thinner and less likely to accept a fertilised egg. In some women, the IUS also stops the ovaries from releasing an egg (ovulation), but most women will continue to ovulate.

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Your partner shouldn't be able to feel your IUD during sex. If he can feel the threads, get your GP or clinician to check your IUD is in place. They may be able to cut the threads a little.

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Fertility will return to normal when the IUD is removed.

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The IUD contains copper and should not be used by those who are allergic to copper.

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It is unlikely that the IUD would move, but the GP or clinician that fits your IUD will teach you how to feel for the threads and check that the IUD is still in place. If you can't feel the threads or if you think the IUD has moved, you may not be fully protected against pregnancy. See your doctor or nurse straight away and use extra contraception, such as condoms, until your IUD has been checked.

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Yes, whilst using the IUD you can use tampons, pads or a mooncup.

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You may have irregular bleeding patterns during the first few months of using the IUD. For some women their periods are heavier, longer or more painful. While using the IUD you can use tampons, pads or a mooncup.

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If you get an STI while you have an IUD fitted, it could lead to pelvic infection. STIs and pelvic infections need to be treated as soon as possible. An IUD doesn't protect you against STIs, so you may also have to use condoms when having sex.

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