Intrauterine insemination is a procedure in which a sample of sperm — from a partner or a donor — is washed, concentrated and placed directly into the uterus around the time of ovulation, using a thin, soft catheter passed gently through the cervix. The purpose is straightforward: shorten the journey for the sperm, increase the number of healthy, motile sperm reaching the fallopian tubes, and time everything to the moment an egg is released.

IUI is not a major surgery. The insemination itself takes about five to ten minutes, is usually painless apart from mild cramping, and is done in the outpatient room of a fertility clinic without anaesthesia. What surrounds the five minutes is more involved — cycle monitoring, ovulation induction medications, follicle tracking scans, and a precisely timed trigger shot — but each of those steps is also low-risk and well-tolerated.

It is important to separate IUI from IVF. IUI works with your own body's egg release and fertilisation inside the fallopian tube; only the sperm is handled in the lab. IVF, in contrast, retrieves eggs surgically, fertilises them in a lab, grows the embryo for several days and transfers it back. IUI is therefore much less invasive and much less expensive, but also much less powerful when the underlying cause is severe.

• Mild male-factor infertility — a slightly low sperm count, slightly reduced motility, or borderline morphology, where concentrating and placing the sample close to the egg can make a meaningful difference.
• Unexplained infertility — a couple where all the standard tests are normal but pregnancy is not happening, especially within the first one to two years of trying.
• Cervical mucus problems or hostile cervical environment, where natural sperm transit is blocked but the rest of the reproductive system is healthy.
• Single women or same-sex female couples using carefully screened donor sperm from a registered Indian sperm bank.
• Sexual dysfunction such as ejaculation or erectile difficulties, where intercourse-based timing is not reliable but sperm quality itself is fine.
• IUI is generally not the right first step for severe male-factor infertility, blocked or significantly damaged fallopian tubes, moderate to severe endometriosis, very low ovarian reserve, or women aged 40 and above — in these situations IVF is usually recommended directly to avoid losing valuable time.

• Day 2 to 3 — Baseline visit: a transvaginal scan to check the ovaries are quiet, a small blood panel, and a discussion of medications. Ovulation induction with letrozole or clomiphene is usually started on this visit and taken for about five days.
• Day 8 to 12 — Follicle tracking: one to three short scans to watch the dominant follicle grow from around 8 millimetres to a mature 18 to 20 millimetres. The exact number of scans depends on how your follicles respond.
• Trigger shot: once a follicle reaches 18 to 20 millimetres, an injection of hCG (such as Ovitrelle or Choriomon) is given to trigger ovulation in a predictable 24 to 36 hour window.
• Sperm preparation: on the morning of insemination, your partner provides a fresh semen sample at the clinic, or a thawed donor sample is prepared. The lab washes the sample to remove seminal fluid, debris and slow sperm, and concentrates the healthy, motile sperm into a small volume.
• Insemination: you lie on the examination table, a speculum is gently inserted, and a thin soft catheter is passed through the cervix to release the prepared sperm directly into the uterine cavity. The procedure takes about five to ten minutes; most women describe it as similar to a smear test.
• Immediately after: you usually lie flat for 10 to 15 minutes and are then allowed to go home and resume normal activity, including walking, work and gentle exercise. There is no need for bed rest.
• Two-week wait: a luteal-phase support such as vaginal progesterone may be prescribed. On day 14 after insemination, a beta-hCG blood test confirms whether a pregnancy has started.

IUI success rates per cycle are modest, and varying widely by age and underlying cause is the rule rather than the exception. For women under 35 with no major fertility issue, the chance of pregnancy in a single IUI cycle is roughly 10 to 20 percent. From 35 to 39, this drops to around 10 percent. From 40 onwards, the per-cycle chance is typically 5 to 8 percent and falls further every year.

Cumulative success is the more useful number. Across three to six well-conducted IUI cycles, roughly 30 to 50 percent of couples will achieve a pregnancy, with the majority of those happening in the first three or four cycles. This is why most specialists recommend planning for a course of three to four cycles up front, rather than judging IUI on the outcome of a single attempt.

It is also why a clear stopping rule matters. If you have completed three to six cycles without success, or if you are over 35 and the first three cycles have not worked, the conversation should shift towards IVF rather than continuing to repeat IUI indefinitely. For a broader sense of when biology argues for moving faster, TTC after 30 — a calm guide is a useful companion.

• Government and research hospitals (such as AIIMS Delhi, PGI Chandigarh, and several state medical college fertility units) — IUI may be available free or at a nominal fee, but with long waiting lists and limited slots each month.
• Mid-tier private clinics and standalone fertility specialists — typically ₹10,000 to ₹25,000 per cycle, often more transparent in pricing than larger chains.
• Large private fertility chains (Indira IVF, Nova IVF, Bloom IVF, Apollo Fertility, Cloudnine, Manipal Fertility) — typically ₹15,000 to ₹30,000 per cycle, sometimes bundled into multi-cycle packages.
• Medications for ovulation induction and trigger — an additional ₹3,000 to ₹10,000 per cycle, depending on whether oral tablets alone (letrozole, clomiphene) or injectable gonadotropins are used.
• Donor sperm from a registered Indian sperm bank — an additional ₹15,000 to ₹25,000 per vial, plus storage and transport fees.
• Pre-cycle investigations (semen analysis, HSG, AMH, TSH, pelvic ultrasound) — a one-time ₹5,000 to ₹15,000, often valid across several IUI attempts.
• Planning hint: budget for three IUI cycles together rather than one, since the realistic decision point is at the end of the third or fourth cycle, not the first.

• Ask for a fully itemised per-cycle price that separates monitoring scans, medications, sperm preparation, the insemination procedure, and any luteal-phase support.
• Ask what happens to the cost if the cycle is cancelled before insemination — for example, if the follicle does not grow well or ovulates too early. Some clinics refund a portion; others do not.
• If you are considering donor sperm, ask which registered sperm bank the clinic works with, how donors are screened, and whether the clinic and bank are compliant with the ART (Regulation) Act 2021.
• Ask for the clinic's IUI success rates broken down by woman's age group, not just an overall average — and ideally by indication (unexplained, male-factor, donor sperm) too.
• Ask how many mature follicles they typically aim for before triggering. One to two is the safer range; allowing three or more sharply raises the risk of triplets or quadruplets.
• Ask whether mandatory counselling is offered, especially if you are using donor sperm — this is required under the ART Act 2021.
• Ask whether the doctor performing the insemination is the same one tracking your cycle, or whether it rotates — continuity often improves the experience.

The insemination itself is usually well tolerated. Most women feel only mild cramping during the procedure, similar to a Pap smear, and may experience light spotting for a day or two afterwards as the catheter passes through the cervix. Vigorous bleeding, severe pain or fever is not normal and should be reported to the clinic.

The medications used for ovulation induction can have their own effects. Letrozole and clomiphene are usually mild but can cause hot flushes, headaches, mood changes or visual disturbance in a minority of women. Injectable gonadotropins are more potent and carry a small risk of ovarian hyperstimulation syndrome (OHSS), particularly if more than two or three follicles grow.

The most underdiscussed side effect is the multiple pregnancy risk. When two or more follicles are mature at the time of insemination, the chance of twins or triplets rises sharply — to about 20 percent when more than one follicle is mature. This is not always a bonus: multiple pregnancies carry significantly higher risks of preterm birth, gestational diabetes, preeclampsia and NICU admission. A responsible clinic will sometimes recommend cancelling an over-responsive cycle rather than risk triplets or quadruplets.

A clear stopping rule is one of the most important parts of any IUI plan, and it should be agreed before the first cycle starts, when emotions are calm and finances are still neutral. The most common rule for women under 35 is to attempt up to three or four well-monitored IUI cycles, and to shift to IVF if there is no pregnancy.

For women aged 35 to 39, the stopping point usually comes sooner — typically after three cycles. Above 40, many specialists will offer only one or two IUI attempts, and some will recommend going directly to IVF, because the per-cycle success of IUI falls steeply and time is the most valuable resource.

Other situations that should trigger an early shift to IVF: a repeat semen analysis showing severe male factor (very low count or very low motility), an HSG showing blocked or significantly damaged fallopian tubes, moderate or severe endometriosis or adenomyosis found on imaging, or an AMH suggesting markedly reduced ovarian reserve. None of these mean IUI is impossible — but they do mean IVF is more likely to be the path that actually works.

If male-factor testing returns concerning numbers, male fertility myths vs reality is worth reading together with your partner before the next clinic visit.

Donor sperm IUI is a fully legal and increasingly common option in India, used by heterosexual couples with severe male-factor infertility, single women, and some same-sex female couples. The donor sperm must come from a sperm bank registered under the ART (Regulation) Act 2021. Reputable banks screen donors for infectious diseases, genetic disorders and basic medical history, and store samples in cryopreservation until needed.

The clinical IUI process is the same as for partner sperm; only the source of the sample differs. On the morning of insemination, the donor sample is thawed, washed and concentrated in the lab just like a fresh sample. Costs in India typically run an additional ₹15,000 to ₹25,000 per vial, with most clinics requiring at least one backup vial in reserve.

Legally, a child born through donor sperm IUI is the legal child of the intended parent or parents, not the donor. The donor has no parental rights or obligations. Counselling — for the individual or the couple — is required under the ART Act before donor cycles begin, and is genuinely useful for working through the emotional and practical aspects of donor conception.

The Assisted Reproductive Technology (Regulation) Act 2021 is the legal framework that now governs IUI, IVF, sperm banks and ART clinics across India. For patients, the practical effects are largely positive. Every ART clinic and every sperm or oocyte bank must be registered with a national registry, must follow defined standards for staff, equipment and record-keeping, and must report cycles and outcomes to the regulator.

Donor sperm and donor egg banks must screen donors for medically relevant conditions, must not exceed legal donation limits per donor, and must maintain records that protect both donor anonymity and the legal rights of the resulting child. Counselling is mandatory before any donor cycle, and the legal parentage of any child born is clearly assigned to the intended parents.

From your side, the most useful practical step is to confirm in writing that the clinic and any associated sperm bank are registered under the Act. Reputable clinics will provide this without hesitation. If a clinic cannot or will not, that is a meaningful warning sign — choose elsewhere.

• Myth: IUI is basically the same as timed intercourse. Reality: IUI bypasses the cervix, concentrates only the most motile sperm, and is precisely timed to ovulation by scan and trigger shot — a meaningfully different intervention from natural intercourse.
• Myth: IUI works in the first cycle if the clinic is good. Reality: even in the best-suited couples, per-cycle success is 10 to 20 percent under 35 and lower with age. Most successful IUI pregnancies happen within three to four cycles, not the first.
• Myth: Bed rest after IUI improves success. Reality: lying flat for 10 to 15 minutes after the procedure is standard, but prolonged bed rest does not improve pregnancy rates. Normal activity, walking and work are fine the same day.
• Myth: A child conceived through donor sperm is not legally or emotionally yours. Reality: under the ART Act 2021, the intended parents are the legal parents; the donor has no parental status. Emotionally, the bond comes from raising the child, not from genetics alone.
• Myth: IUI causes long-term harm to the uterus or hormones. Reality: the procedure itself is low-risk and does not damage the uterus. The medications are used in similar doses to standard ovulation induction and are well-studied over decades.
• Myth: If IUI fails, IVF will also fail. Reality: many couples for whom IUI does not work go on to conceive through IVF, because IVF addresses several causes (poor egg-sperm contact, fertilisation problems, tubal issues) that IUI cannot.

IUI is a sensible, well-tested first step for many couples and individuals who need help conceiving — especially when the issue is mild male factor, unexplained infertility, cervical problems, or the need for donor sperm. In an Indian context, it is also one of the most affordable assisted-reproduction options, with full cycles available between ₹10,000 and ₹30,000 at most reputable clinics, plus medications.

The most useful mindset is to plan for a course rather than a single attempt: three to four cycles, with clear stopping rules agreed in advance, and a willingness to move to IVF if IUI does not work within that window. Choose a clinic that is registered under the ART Act 2021, gives itemised pricing, shares age-specific success rates honestly, and limits the number of mature follicles to keep multiple pregnancy risk low.

Above all, treat the process as a medical journey, not a verdict. Many people who do not conceive in their first cycle do conceive later, and many who do not conceive with IUI go on to have healthy pregnancies with IVF. For a wider view of readiness, is my body ready to conceive is a calm starting place; and if a second pregnancy is what you are pursuing, secondary infertility in India walks through what changes the second time around.