What tests do you need before starting IUI?
Before starting IUI, both partners are checked. The wife needs a test showing at least one fallopian tube is open, an ultrasound, and hormone and egg-reserve blood tests. The husband needs a semen analysis. Basic health tests, such as blood group, thyroid and infection screening, complete the picture, because IUI only makes sense when these basics are in place.
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In this detailed English video, Dr Mayur Pai explains IUI treatment from start to finish. This page takes up one part of that journey: the checks that come before the first cycle, and why each one matters.
Why are tests needed before IUI?
IUI can only work if four things are in place: an egg is released, at least one tube is open to carry it, enough healthy sperm are available, and the womb is ready to hold a pregnancy. The tests check each of these. Skipping them risks months of IUI that could never have worked, for example when both tubes are blocked. They also pick up treatable problems, such as a thyroid imbalance or an infection, that are worth putting right first.
Are the tubes open?
IUI places sperm in the womb, but the egg and sperm still meet inside a fallopian tube. If both tubes are blocked, IUI cannot work, and IVF is the route instead. The tubes are usually checked in one of these ways:
- HSG (hysterosalpingography): a special dye is passed gently through the cervix, and an X-ray shows whether it flows through the tubes. It takes a few minutes and can cause period-like cramps for a short while.
- Sono-salpingography: a similar test that uses fluid and an ultrasound scan instead of an X-ray.
- Laparoscopy: a keyhole operation under anaesthesia, chosen when there are other reasons to look inside, such as suspected endometriosis or a past pelvic infection.
Tube tests are done after the period has stopped and before ovulation, so that an early pregnancy cannot be disturbed.
What does the husband's semen analysis show?
The semen analysis is as important as any test the wife has. It shows how many sperm there are, how well they swim and how normally they are shaped, and it decides whether IUI is suitable at all. He should leave a gap of two to five days since the last ejaculation before the test. A low result is usually repeated, because counts vary from one test to the next. What each line of the report means is explained in sperm under the microscope.
Is she ovulating, and what is her egg reserve?
An internal ultrasound looks at the womb and both ovaries. It can show the many small follicles typical of PCOS, a cyst, a fibroid or a polyp, and it counts the small resting follicles that hint at the egg reserve. Blood tests add to the picture:
- Day 2 or 3 hormones, such as FSH and LH, show how the ovaries and the brain's signals to them are working.
- AMH is a blood test of egg reserve that can be done on any day. A low result changes how quickly we move, as explained in IUI when AMH is low.
- Thyroid and prolactin are checked because either one out of balance can upset ovulation, and both are usually straightforward to treat.
Whether she ovulates is often clear from regular periods, and it can be confirmed on scans during the first treatment cycle.
Which basic health tests are needed?
Before any fertility treatment, both partners have a few routine blood tests, including blood group, haemoglobin and blood sugar, which matters especially with PCOS. Screening for HIV, hepatitis B, hepatitis C and syphilis is standard for both partners before a sample is handled in the laboratory, to protect the couple, a future baby and everyone in the laboratory. The wife is also checked for immunity to rubella (German measles). If she is not protected, a vaccine is advised, and pregnancy is put off for a short while afterwards.
Is the womb ready?
The scan also checks the lining and shape of the womb. If a polyp, a fibroid bulging into the cavity or a septum is suspected, a hysteroscopy, a look inside the womb with a thin telescope, may be advised first, because these can stand in the way of a pregnancy settling.
What if a test shows a problem?
A result outside the normal range is a reason to adjust the plan, not a reason to lose heart. A thyroid or prolactin imbalance is treated first, and IUI can often begin once it is under control. A polyp can be removed. If both tubes are blocked, or the semen analysis shows very few good sperm, IUI is set aside and IVF, with ICSI where needed, becomes the sensible route. The point of testing first is that the treatment you start is one that suits you.
How long do the tests take?
Most of the tests fit into a single menstrual cycle. The hormone tests are timed for day 2 or 3 of the period, the tube test for the days after bleeding stops, and the rest can be done on any day. Bring every report you already have: recent, complete results do not always need repeating. Once the picture is clear, the first cycle can be planned, as set out in the IUI cycle day by day. For a simple overview of IUI itself, see what IUI is and how it works.
Where treatment happens
This guide is by Dr Mayur Pai, MBBS, MS (Obstetrics & Gynaecology), a fertility and laparoscopy specialist. Pai Hospital in Goa has its own operating theatre and its own IVF laboratory, so the scans, the laboratory tests and the treatment itself happen in one place, under one team. Free patient transport is available: the hospital's car collects you from anywhere in Goa and takes you home again.
Getting started
For questions, send a short message on WhatsApp to +91 95185 02773 with your situation and any reports you already have. To book a consultation, call our reception on +91 95459 20817; consultations are by appointment and are held in Panjim, Margao, Mapusa and Vasco. Treatment packages are transparent and fixed, so ask us for the details. This article is for education only and is not personal medical advice; please consult your doctor about your own situation.
Your questions
Is a tube test really necessary before IUI?
It is an important check. IUI relies on the egg and sperm meeting inside a fallopian tube, so at least one tube must be open. If your tubes have not been checked, the doctor will discuss when to do the test, because months of IUI with blocked tubes would be wasted.
Does my husband need a semen test if I am the one with PCOS?
Yes. Both partners are always tested, because a sperm problem can exist alongside PCOS and would change the plan. The semen analysis is simple, and it shows whether IUI is suitable or whether another route makes more sense.
Does an HSG hurt?
Most women feel cramps like period pain while the dye passes, easing within a short while afterwards. The test itself takes only a few minutes, and your doctor may suggest a simple pain reliever beforehand.
Can I use reports I already have from elsewhere?
Yes, please bring them. Recent, complete reports often do not need repeating, which saves time and money. Some tests, such as the semen analysis or hormone levels, may be repeated if they are old or borderline.
How long do the tests take before IUI can start?
Most can be completed within one menstrual cycle, because some are timed to particular days of the period. Once the results have been reviewed, the first IUI cycle can often begin with the next period.
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This page is for general education and is not personal medical advice. Treatment depends on your own examination and reports, so please speak to a doctor about your situation. We do not carry out or offer sex determination of any kind.