Key takeaways

  • Both IUDs are over 99% effective — among the most reliable reversible methods, because there is nothing to remember daily.
  • The copper IUD (Cu-T 380A) is hormone-free, lasts up to 10 years, and is free at government health centres; it often makes periods heavier and crampier.
  • The hormonal IUD (Mirena) releases a tiny dose of progestogen, lasts 5 years, and usually makes periods much lighter or stops them — but costs roughly Rs 15,000 to 22,000 plus insertion.
  • Neither IUD protects against STIs, so condoms are still needed where that risk exists.
  • Fertility returns to normal within 1 to 3 cycles after removal, whichever type you used.
  • The right choice depends on your budget, your current period pattern, and whether you want or need to avoid hormones.

How the two IUDs work

Both devices sit in the uterine cavity, but they prevent pregnancy in different ways.

The copper IUD (Cu-T 380A is the standard version in India) releases copper ions that are toxic to sperm. They stop sperm from moving and surviving, so fertilisation cannot happen, and they make the uterine lining unwelcoming to a fertilised egg. Importantly, the copper IUD does not use hormones and does not stop ovulation — you keep ovulating and cycling normally, just with the period changes described below.

The hormonal IUD (Mirena, a levonorgestrel-releasing system) slowly releases a small amount of progestogen directly into the uterus. This thickens cervical mucus so sperm cannot get through, and thins the uterine lining. The hormone dose reaching the rest of your body is far lower than with the pill, so whole-body side effects like mood or breast changes are much less common — though a minority of women still notice them.

Both are more than 99% effective, compared with about 91% for typical pill use and 82% for typical condom use. The reason is simple: once placed, an IUD works around the clock with nothing for you to remember. Neither device protects against sexually transmitted infections, so condoms remain necessary where there is any STI risk. The copper IUD can also double as the most effective form of emergency contraception when fitted within five days of unprotected sex.

The copper IUD (Cu-T): hormone-free and long-lasting

The Cu-T 380A is the copper IUD most Indian women will be offered. It is distributed free of cost through the National Family Planning Programme at Primary Health Centres, Community Health Centres and district hospitals. At a private clinic the device itself costs only Rs 50 to 200, with insertion charges of roughly Rs 200 to 1,500. Because one device lasts up to 10 years, it works out to a few rupees a month — by far the cheapest reliable method available.

Why women choose it:

  • No hormones at all — ideal if you want to avoid hormonal contraception by choice or for a medical reason.
  • Safe while breastfeeding; it does not affect milk supply, and it is a mainstay of postpartum contraception and can often be fitted soon after delivery or an abortion.
  • Up to 10 years of cover from a single fitting, and immediately reversible on removal.
  • Can be used as emergency contraception.

The main trade-off is your periods. Many women find periods become heavier and crampier, especially in the first 3 to 6 months, and this can persist. If your periods are already light to moderate and not very painful, this is usually tolerable. If you already have heavy menstrual bleeding or significant period pain, the copper IUD may make things worse, and the hormonal IUD is usually the better fit.

The hormonal IUD (Mirena): lighter periods, higher cost

Mirena is the most widely used hormonal IUD in India. It releases a small daily dose of levonorgestrel into the uterus and lasts 5 years. It is mainly available through private hospitals (Apollo, Cloudnine, Fortis, Manipal, Max and established gynaecology practices) at roughly Rs 15,000 to 22,000 for the device, plus Rs 1,500 to 5,000 for insertion. Some government facilities now offer it at subsidised rates, particularly for women who need it for a medical reason.

Why women choose it:


The trade-offs are the higher cost, the small amount of hormone involved, and irregular spotting in the first 3 to 6 months while your body settles. Some women also get harmless ovarian cysts that resolve on their own, and a small number notice acne, breast tenderness or mood changes. If you are weighing up these effects against other methods, our guide to birth control side effects explains what is normal and what to act on.

Side by side: copper vs hormonal

Here is the quick comparison most women want. For a deeper India-specific breakdown, see our dedicated guide to copper IUD vs Mirena.

What the insertion is really like

Insertion is a short outpatient procedure — about 10 to 15 minutes — done by a trained gynaecologist, medical officer or auxiliary nurse midwife. You lie in the usual pelvic-exam position; the provider passes a speculum, cleans the cervix, measures the depth of the uterus, and then slides the IUD through the cervix into the uterus. The strongest sensation is usually 30 to 90 seconds of cramping, similar to a bad period cramp.

Pain varies a lot between women. Those who have given birth vaginally often find it easier. To make it more comfortable you can take ibuprofen 400 to 600 mg about an hour before, and many Indian clinics now offer local anaesthetic (lidocaine gel or a paracervical block). If you are anxious, say so in advance — sedation is available at some private hospitals.

Afterwards, expect mild cramping and light spotting for a day or two, eased by NSAIDs. Most women resume normal activity the same or next day. Your provider will trim two short threads that sit at the cervix; you can feel for these with a clean finger after each period to confirm the device is still in place. A follow-up visit at 4 to 6 weeks checks the position. If it is your first internal procedure, our note on what to expect before a pelvic exam may help you feel prepared.

Bleeding and side effects: what to expect over time

Copper IUD: Periods are often 20 to 50% heavier, with more cramping, peaking in the first 3 to 6 months and sometimes continuing. There is no whole-body hormonal effect — it does not change mood, weight or breast tenderness. If heavier periods leave you tired, get your haemoglobin checked, as menstrual blood loss is a leading cause of iron-deficiency anaemia in Indian women.

Hormonal IUD (Mirena): The first 3 to 6 months often bring unpredictable spotting. This frustrates some women enough to consider removal — but it almost always settles. By 12 months most women have very light periods or none at all. A minority notice acne, breast tenderness, mood changes or harmless ovarian cysts that clear up on their own.

Concerns common to both, in honest perspective:

  • Infection (PID): Risk is very slightly raised only in the first 20 days after insertion, then returns to normal. Sterile technique and screening for pelvic infection before fitting keep this risk very low.
  • Expulsion: The device occasionally slips out, most often in the first few months — feel for the threads to check.
  • Perforation: Very rare (about 1 to 2 per 1,000 insertions), where the device pushes through the uterine wall during fitting and needs to be retrieved.
  • Pregnancy with an IUD in place: Rare, but if a pregnancy test is positive while you have an IUD, see a doctor promptly, as the small chance of an ectopic pregnancy needs to be ruled out.

Who can use an IUD — and who should consider other options

Modern guidelines, including those from FOGSI and the National Family Planning Programme, make IUDs suitable for a much wider range of women than the old advice suggested. They can be used by women who have never had children, by adolescents, by breastfeeding mothers, soon after delivery or abortion, and by women with most chronic medical conditions. The old idea that IUDs are only for those who have completed their family is outdated.

An IUD may not be the right choice if you:

  • Have a current pelvic infection or untreated STI (treat first, then reconsider).
  • Are or might be pregnant, or have unexplained vaginal bleeding that has not been investigated.
  • Have a uterine cavity distorted by large fibroids or a structural anomaly.
  • Need contraception for less than a year (the upfront cost is not worth it).
  • Specifically want STI protection — in which case use condoms alongside, or instead.

Some cautions apply to one type only. The hormonal IUD is generally avoided in active breast cancer; the copper IUD suits women who must avoid hormones but is a poor fit if periods are already very heavy. Often a contraindication to one type still allows the other. If an IUD is not for you, an arm implant is another highly effective, low-maintenance option worth discussing with your gynaecologist.

Removal and trying for a baby afterwards

Removal is quick and usually easier than insertion — the provider grasps the threads and gently draws the device out, with brief cramping that passes in a moment. You can return to your day straight away.

Fertility returns fast. With the copper IUD, which never stopped your ovulation, you can conceive from the very next cycle. With Mirena, normal cycles typically resume within 1 to 3 cycles. Studies show that time-to-pregnancy after IUD removal is no different from stopping any other contraceptive — the old fear that IUDs cause infertility is not supported by evidence.

If you are switching from an expiring device to a new one, the old IUD can usually be removed and a new one fitted at the same visit. If you are planning a pregnancy, this is a good moment to begin preconception steps — start folic acid and other pregnancy supplements, get any long-term conditions well controlled, and check your vaccinations are up to date.

Common IUD myths in India, corrected

Myth: IUDs are only for women who have finished having children

  • False. Current FOGSI and national guidelines clearly support IUD use in women who have never had children, in adolescents, and in women spacing pregnancies. Smaller hormonal devices are designed for first-time users.
  • Fertility returns within 1 to 3 cycles after removal, so an IUD lets you have highly effective birth control now while fully preserving the option of pregnancy later.

Myth: IUDs cause infertility and pelvic infection

  • Largely false. Any rise in pelvic infection risk is confined to the first 20 days after insertion, then returns to baseline. With sterile technique and pre-insertion screening, the absolute risk is very low.
  • The historical scare came from the Dalkon Shield device of the 1970s, withdrawn over 40 years ago because of a faulty thread design. Modern IUDs do not share that flaw, and large studies show no increase in infertility after use.

Myth: The IUD can travel to your heart or brain, or cause cancer

  • False. The IUD sits in the uterus and cannot migrate through tissue to other organs. In the rare event of perforation it ends up just outside the uterus, where it is removed surgically — it cannot reach the heart or brain.
  • IUDs do not cause cancer. The copper IUD has no cancer link, and the hormonal IUD has been studied extensively without any increase in breast, endometrial, ovarian or cervical cancer; if anything it appears mildly protective for the womb lining.

Myth: My partner will feel the IUD during sex

  • Mostly false. The device itself sits above the cervix and cannot be felt. Occasionally a partner notices the soft threads with deep penetration; if this is bothersome, the provider can simply trim them shorter.
  • For most couples the IUD makes no difference to sensation, and many report that not having to think about contraception improves their relationship.

Frequently asked questions

Which is better, the copper IUD or Mirena?

Neither is universally better — it depends on you. Choose the copper IUD if you want to avoid hormones, want the lowest cost, or want up to 10 years of cover. Choose Mirena if you have heavy or painful periods, anaemia, endometriosis or adenomyosis, or simply prefer lighter periods. Discuss your period pattern and budget with your gynaecologist.

Does an IUD hurt to put in?

Most women feel 30 to 90 seconds of strong cramping during insertion, then milder cramps for a day or two. Taking ibuprofen an hour beforehand and asking for local anaesthetic both help. Women who have given birth vaginally usually find it easier.

Can I get an IUD if I have never had a baby?

Yes. Modern Indian and international guidelines support IUD use in women who have never had children and in adolescents. The old restriction was based on outdated concerns that newer evidence has not borne out.

How soon can I get pregnant after removing an IUD?

Quickly. With the copper IUD you can conceive from the next cycle. With Mirena, normal cycles usually return within 1 to 3 cycles. Time-to-pregnancy is the same as after stopping any other method.

Will the copper IUD make my periods heavier?

Often yes — periods can be 20 to 50% heavier and crampier, especially in the first 3 to 6 months. If your periods are already heavy or you are anaemic, the hormonal IUD, which usually makes periods lighter, is generally the better choice.

Is Mirena available free or at subsidised cost in India?

Mostly it is bought privately at around Rs 15,000 to 22,000 plus insertion. Some government facilities now offer it at subsidised rates, particularly for women who need it for a medical reason such as heavy menstrual bleeding. The copper IUD is free at all government health centres.

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