IUI Treatment Explained: Process, Success Rate, and Cost in India
Between lifestyle changes and full IVF, there is a fertility treatment that is frequently underestimated — one that is less invasive, considerably less expensive, and for the right patient, genuinely effective. Intrauterine Insemination (IUI) places prepared sperm directly into the uterus around the time of ovulation, reducing the distance sperm must travel and improving the chances of fertilisation. If your investigations suggest a mild issue rather than a complex one, IUI may be the most appropriate and logical first step.
What Is IUI and How Is It Different from IVF?
Intrauterine Insemination (IUI) is one of the simplest and least invasive fertility treatments available. It is often recommended as the first treatment option for couples facing mild fertility challenges before considering more advanced procedures like IVF.
In IUI, a washed and concentrated sperm sample is placed directly into the uterine cavity using a thin catheter. This bypasses the cervix and brings sperm much closer to the fallopian tubes, where natural fertilisation occurs.
Unlike IVF, fertilisation still happens inside the body, not in a laboratory.
Read more: IVF Treatment at Yellow IVF
IUI is almost always combined with ovarian monitoring—either by tracking natural ovulation or using mild ovarian stimulation medications such as Letrozole or low-dose Gonadotropins to produce one or two mature follicles.
Once the leading follicle reaches the appropriate size, a trigger injection is administered, and the IUI procedure is scheduled 34–36 hours later.
Who Is IUI Suitable For?
IUI works best when the barriers to conception are relatively mild. One essential requirement is that at least one fallopian tube must be open.
If both tubes are blocked, IUI cannot work because fertilisation still occurs naturally inside the fallopian tube.
| Patient Profile | Is IUI Suitable? | Notes |
|---|---|---|
| Mild male factor infertility (Post-wash count >5 million/mL) | ✅ Yes | Sperm washing improves sperm quality |
| Unexplained infertility (Age <35 years) | ✅ Yes | Usually 3–6 cycles before IVF |
| PCOS / Anovulation with open tubes | ✅ Yes | Combined with ovulation induction |
| Cervical factor infertility | ✅ Yes | Bypasses the cervix completely |
| Donor sperm (Single women / Same-sex female couples) | ✅ Yes | Straightforward and minimally invasive |
| Blocked fallopian tubes | ❌ No | IVF is required |
| Severe male factor infertility / Azoospermia | ❌ No | IVF with ICSI recommended |
| Women over 38 with diminished ovarian reserve | ⚠️ Use with caution | IVF may be more time-effective |
The IUI Process: Step by Step
Step 1 — Baseline Assessment
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Before treatment begins, your fertility specialist will:
- Confirm that at least one fallopian tube is open (usually through an HSG test)
- Review the semen analysis
- Decide whether a natural or stimulated cycle is most appropriate
Step 2 — Ovulation Monitoring
Beginning on Day 2 or Day 3 of the menstrual cycle:
- Ultrasound scans monitor follicle growth every 2–3 days.
- Ovulation stimulation medications may be started if prescribed.
Step 3 — Trigger Injection
When the dominant follicle reaches approximately 18–22 mm, an hCG trigger injection is given.
The IUI procedure is then scheduled 34–36 hours later.
Step 4 — Sperm Preparation
On the day of the procedure:
- A semen sample is collected.
- The embryology laboratory performs sperm washing, separating the healthiest and most motile sperm into a highly concentrated sample.
Step 5 — Insemination
Using a very thin catheter, the prepared sperm is gently placed directly inside the uterus.
The procedure:
- Takes around 10–15 minutes
- Requires no anaesthesia
- Is generally painless
- Feels similar to a routine cervical smear (Pap test)
Step 6 — Pregnancy Test
Approximately 14 days after the IUI, a Blood Beta-HCG test is performed to confirm pregnancy.
Progesterone support is commonly prescribed during this waiting period.
How Long Does One IUI Cycle Take?
| Phase | Typical Duration |
|---|---|
| Baseline assessment + HSG | Within the current menstrual cycle |
| Monitoring scans | Days 2–12 of the cycle |
| Trigger injection to IUI | 34–36 hours |
| Two-week wait + Beta-HCG test | 14 days |
| Total treatment time | Approximately 3–4 weeks |
Frequently Asked Questions
What are the success rates of IUI?
Per treatment cycle, IUI generally results in live birth rates of around 10–20%, depending on:
- Age
- Fertility diagnosis
- Ovarian stimulation
- Sperm quality
Couples completing three to six IUI cycles may achieve cumulative pregnancy rates of 30–50%, with many never requiring IVF.
How much does IUI cost in India?
An IUI cycle at Yellow IVF, including monitoring and insemination, is considerably more affordable than IVF.
A personalised treatment estimate is provided during consultation, with no hidden charges.
When should I move from IUI to IVF?
Most fertility specialists recommend considering IVF after three to six unsuccessful IUI cycles.
Earlier transition to IVF may be appropriate if:
- You are over 37 years of age
- Fallopian tubes become compromised
- Ovarian reserve declines
- Other fertility factors emerge during treatment
Your Yellow IVF fertility specialist reviews every cycle individually before recommending the next step.
Can I undergo IUI using donor sperm?
Yes.
IUI with donor sperm is a well-established treatment option for:
- Single women
- Same-sex female couples
- Couples requiring donor sperm
This service is available at all Yellow IVF centres.
About the Author
Dr. Sonu Taxak
MBBS • MD (Obstetrics & Gynaecology)
Fellowship in Reproductive Medicine & IVF
Founder & Director, Yellow IVF
- 10+ years of clinical fertility experience
- 1,000+ IVF cycles supervised
Learn more: /about-yellow-ivf/
Final Thoughts
IUI is sometimes described as simply a stepping stone before IVF, but that is not always true.
For carefully selected patients, IUI offers an excellent opportunity to achieve pregnancy with:
- Minimal intervention
- Lower treatment costs
- Less physical and emotional burden than IVF
Success depends on selecting the right patients, making the correct diagnosis, and providing careful monitoring throughout the cycle.
At Yellow IVF, IUI is never performed simply as a formality before IVF—it is recommended only when it is genuinely the most appropriate treatment.
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Useful Links
- IUI Treatment: /iui-process/
- All Fertility Treatments: /fertility-treatment/
- Book a Consultation: /contact-yellow-ivf/
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