Prevention
IUD Insertion: What to Expect & How to Prepare
Getting an IUD placed, or thinking about it? Here's a plain walk-through of what happens and how to get ready — the best timing, the tests done first, the pain-relief options worth asking about, what the few-minute procedure feels like, and when you're actually protected. Tick off a prep checklist as you go. It's an educational guide, not a diagnosis, and nothing you enter leaves your device.
Placement takes only a few minutes, and current guidance says your pain-management options should be discussed — so you can ask. Here's how to prepare.
IUD insertion prep checklist
Based on CDC and ACOG contraceptive guidance. This is general information to help you prepare, not a diagnosis or a care plan — your clinician places your IUD and makes the decisions with you.
After your IUD — when to contact your provider
Some cramping and spotting is normal. These are not — call your provider or urgent care.
- Severe or worsening pelvic pain that over-the-counter pain relief doesn't ease
- A fever, chills, or feeling generally unwell
- Heavy bleeding — soaking through a pad every hour or two
- Unusual or foul-smelling vaginal discharge
- Pain during sex, or you (or a partner) can feel the hard plastic of the device
- You can't feel your strings, they feel much longer or shorter, or you think the IUD came out
- A missed period with a positive pregnancy test — especially alongside pelvic pain
These can signal infection, that the IUD has moved or come out (expulsion), or the rare risk of perforation — they need prompt medical attention, not a wait-and-see. If you have severe pain with a fever, seek care right away.
Before you go
Timing, and the tests done first
An IUD can be placed at almost any point in your cycle, as long as pregnancy has been reasonably ruled out — which is why a pregnancy test is typically done at the visit. There's a small practical advantage to placing it during your period (the cervix can be a little more open, and it confirms you're not pregnant), but it isn't required, and plenty of people are placed mid-cycle without issue.
Your clinician may also screen for STIs such as chlamydia and gonorrhea around the time of placement — especially if you're due for testing or have risk factors. An active infection is treated first, since placing an IUD through one can raise the risk of infection. This is routine, not a hurdle, and it's a good moment to get up to date on testing anyway.
Timing also affects when you're protected. A hormonal IUD placed within the first 7 days of your period works immediately; placed at another time, you'll need a short backup period. The copper IUD works right away no matter when it's placed — more on that below.
Ask about this
Pain-relief options worth asking about
Placement can cramp, and how much varies a lot from person to person. Current guidance has moved toward offering and discussing pain control rather than assuming you'll just get through it — so it's completely reasonable to ask ahead of time what's available. Which options suit you is your clinician's call, but here's what to raise.
| Option | What to know |
|---|---|
| NSAID before the visit | An anti-inflammatory like ibuprofen or naproxen is commonly offered, though the CDC's 2024 review found no clear evidence it reduces placement pain — ask whether your clinician suggests taking one before you arrive. |
| Local anesthetic (lidocaine) | Topical lidocaine or an injected paracervical block may reduce placement pain; the evidence is mixed, so ask whether it's offered where you're going. |
| Misoprostol | Not recommended for routine use — it's reserved for specific situations, such as a previous difficult placement. Not something to expect as standard. |
Per the CDC's 2024 Selected Practice Recommendations. Evidence on some options is mixed and none is guaranteed — this is what to ask about, not a prescription.
What to expect
What the procedure feels like
The placement itself usually takes only a few minutes. Here's the sequence, so nothing comes as a surprise.
- 1
Getting settled
You lie back as for a routine pelvic exam, and a speculum is placed so the clinician can see your cervix. The cervix is cleaned.
- 2
Measuring
The clinician checks the position and depth of your uterus, sometimes steadying the cervix with a small instrument. This step often causes a brief, sharp cramp.
- 3
Placing the IUD
The IUD is passed through a thin tube into the uterus, where its soft arms open out. This is usually the most intense moment — a strong cramp — and it passes quickly.
- 4
The strings
The tube is removed and the two thin strings are trimmed so a short length sits in the upper vagina. You'll be shown how to feel for them later.
- 5
Afterward
Cramping often eases within minutes to hours. Feeling briefly dizzy or lightheaded right after is common — rest a moment before you stand, and take it easy the rest of the day.
When you're protected
Backup contraception until it's effective
Whether you need a backup method for a few days comes down to the type of IUD and when in your cycle it's placed.
| Situation | When you're protected |
|---|---|
| Copper IUD (any timing) | Effective immediately — no backup contraception needed |
| Hormonal IUD placed in the first 7 days of your period | Effective immediately — no backup needed |
| Hormonal IUD placed at any other time | Use backup (condoms or no sex) for 7 days |
Standard rule per CDC guidance. For the exact dates in your situation, use the backup-timing calculator.
The string check
Before you leave, ask your clinician to show you how to feel for the two thin strings high in your vagina. Checking now and then — especially after your period in the first few months — is a simple way to confirm the IUD is in place. If the strings feel much longer, shorter, or missing, or you can feel the hard device, contact your provider. Our IUD string self-check guide walks through exactly how.
Next steps
Related tools
Check your IUD strings
How to feel for your strings after placement, and what a normal vs worrying check feels like.
Which birth control?
Weighing an IUD against other methods? Compare them by how they fit your body and routine.
Backup timing calculator
Work out the exact days you need a backup method after your IUD is placed.
Switching methods
Moving to an IUD from the pill, ring, or another method without a gap in protection.
Sources
Where this comes from
The pain-management framing — that lidocaine (topical or a paracervical block) may reduce placement pain, and that misoprostol is not recommended for routine use — follows the CDC's 2024 U.S. Selected Practice Recommendations for Contraceptive Use (intrauterine contraception). The backup rule (copper effective immediately; hormonal effective immediately if placed within the first 7 days of the cycle, otherwise 7 days of backup) is standard from the same source, and what-to-expect detail draws on ACOG's LARC counseling and MedlinePlus. We present the guidance and the reassurance the evidence supports; your clinician makes the decisions with you.
Medically Reviewed & Fact-Checked · Updated
Reviewed by EasySTD Editorial Team
Compiled and checked by EasySTD's editorial team against CDC and public-health sources. This is educational information, not a substitute for advice from a licensed clinician. Our editorial guidelines →
4 Sources
Data & references
- CDC: U.S. Selected Practice Recommendations for Contraceptive Use, 2024 (Intrauterine Contraception — pain management & backup)https://www.cdc.gov/contraception/hcp/usspr/intrauterine-contraception.html
- CDC: U.S. Selected Practice Recommendations for Contraceptive Use, 2024 (overview)https://www.cdc.gov/contraception/hcp/usspr/index.html
- ACOG: Long-Acting Reversible Contraception (IUD and implant)https://www.acog.org/womens-health/faqs/long-acting-reversible-contraception-iud-and-implant
- MedlinePlus Medical Encyclopedia: Intrauterine devices (IUD)https://medlineplus.gov/ency/article/007635.htm
EasySTD is an information and comparison directory, not a healthcare provider. This tool is general information based on published CDC and ACOG guidance: it is not medical advice, a diagnosis, or a prescription, and it does not create a doctor-patient relationship. Decisions about IUD placement, timing, and pain relief are made with your clinician. If you have severe pain, a fever, heavy bleeding, or foul-smelling discharge after your IUD, contact your provider or urgent care.
Good to Know
IUD insertion: frequently asked questions
Whether it hurts and what helps, how to prepare, timing in your cycle and the tests done first, how long until it works, what's normal afterward, and how private this is.
Does getting an IUD hurt, and what can I do about the pain?
It varies a lot. Many people feel cramping and some sharp discomfort for the minute or two of placement — often strongest when the uterus is measured and when the IUD is inserted — and some feel fine afterward while others cramp for the rest of the day. Feeling briefly dizzy or lightheaded is common too. The important shift in recent guidance is that your options for pain management should be discussed rather than brushed off. The CDC's 2024 recommendations note that lidocaine — a topical gel or an injected paracervical block — may reduce placement pain, and it's reasonable to ask whether it's available where you're going. Taking an NSAID like ibuprofen beforehand is commonly suggested. Misoprostol is not recommended for routine use and is reserved for specific situations, so don't expect it as standard. Which options fit you is a conversation to have with your clinician ahead of time.
How should I prepare for an IUD insertion?
A few simple things help. Eat something beforehand — feeling lightheaded during placement is common. Bring a pad or two, since light bleeding and spotting afterward are normal. Ask your provider ahead of time about pain relief: whether to take an NSAID before you arrive, and whether a local anesthetic (lidocaine) is offered. Have over-the-counter pain relief and a heat pad ready at home for cramps, and try to keep the rest of the day relaxed — arranging a ride or some support isn't required but many people appreciate it. Before you leave the clinic, learn how to feel for your IUD strings for later self-checks and confirm when the IUD is fully effective. The interactive checklist on this page walks through all of it and lets you tick items off privately.
When in my cycle can an IUD be placed, and do I need a pregnancy or STI test first?
An IUD can be placed at almost any point in your cycle, as long as pregnancy has been reasonably ruled out — so a pregnancy test is typically done at the visit. There can be a small practical advantage to placing it during your period (the cervix may be a little more open and it confirms you're not pregnant), but it is not required. Your clinician may also screen for STIs such as chlamydia and gonorrhea around the time of placement, particularly if you're due for testing or have risk factors; treating an active infection is handled first. This timing also affects backup: a hormonal IUD placed within the first 7 days of your period works immediately, whereas placement at other times needs a short backup period.
How long until an IUD works, and do I need backup contraception?
It depends on the type and the timing. The copper IUD is effective immediately, the moment it's placed — no backup period at all. A hormonal IUD is also effective immediately if it's placed within the first 7 days of your period; placed at any other time in your cycle, you should use a backup method (such as condoms) or avoid sex for 7 days while it becomes effective. That's the standard rule, but confirm the exact type and timing with your clinician, and if you want the specific dates for your situation, the backup-timing calculator linked below will work them out. Once you're past the backup window, an IUD is one of the most effective methods available.
What's normal after an IUD is placed, and what's a warning sign?
Cramping, a low backache, and light bleeding or spotting for a few days to a couple of weeks are all expected as your body adjusts — an over-the-counter pain reliever and a heat pad usually help, and irregular bleeding often settles over the first few months. What is not routine, and should prompt a call to your provider, is severe or worsening pelvic pain that pain relief doesn't touch, a fever or chills, heavy bleeding (soaking a pad every hour or two), unusual or foul-smelling discharge, pain during sex or feeling the hard device, not being able to feel your strings or thinking the IUD came out, or a positive pregnancy test with a missed period. Those can signal infection, expulsion, or a rare perforation and need prompt medical attention rather than a wait-and-see.
Is what I enter here private?
Yes. This tool runs entirely in your browser. The checklist you tick and the IUD type you pick are used only on your own device — nothing is sent to a server, saved, or shared, and closing the tab clears it. In a post-Dobbs world we treat reproductive and contraceptive information as sensitive by default. It's general educational information based on published CDC and ACOG guidance; it can't diagnose you, prescribe anything, or replace the clinician who's placing your IUD and knows your history. When something's worrying you, that conversation is the goal — this just helps you walk in prepared.
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