Key takeaways

  • HSG checks two things: whether your fallopian tubes are open (patent) and whether the uterine cavity has a normal shape.
  • It is usually done between day 7 and day 12 of your cycle, after your period ends but before ovulation, so there is no risk to an early pregnancy.
  • Most women feel moderate period-like cramps for about 5 to 10 minutes; taking ibuprofen 30 minutes before helps a lot.
  • A normal result is reported as 'free spill of dye' into the abdomen, meaning at least one tube is open.
  • In private centres an HSG typically costs Rs 3,000 to Rs 12,000 in India; it is often free or low-cost at government hospitals.
  • Some women conceive in the few months after HSG because the dye can flush minor debris from the tubes.

What an HSG actually is

HSG stands for hysterosalpingography (hystero = uterus, salpingo = tubes, graphy = imaging). A thin, water-based or oil-based contrast dye is gently passed through your cervix into the uterus, and X-ray (fluoroscopy) shows whether the dye fills the uterus and flows out through your fallopian tubes.

It matters because natural conception needs an open path: the sperm must travel up to meet the egg, and the fertilised egg must travel back down to the uterus. If a tube is blocked, that journey cannot happen on that side. In most Indian hospitals and fertility centres the procedure itself takes about 15 to 30 minutes, though your overall visit may be longer.

Why it is ordered in a fertility workup

HSG is mainly ordered to look for tubal blockage, which is behind roughly a quarter of female infertility. Past pelvic infection, genital tuberculosis (still an important cause in India), endometriosis, previous pelvic surgery, or a fallopian tube problem such as hydrosalpinx can all damage or block the tubes.

The test also shows the shape of the uterine cavity, including a septum, polyp, fibroid pushing into the cavity, or scarring. That makes it a useful baseline before planning IUI and sometimes before IVF. It is usually one piece of a wider workup that also looks at ovulation, your ovarian reserve on an AMH test, and a partner's semen analysis, because fertility is rarely about a single factor.

When the HSG is scheduled in your cycle

HSG is usually booked between day 7 and day 12 of your menstrual cycle, counting day 1 as the first day of full flow. This window is after bleeding has stopped but before What Ovulation Actually Means, so the chance of an early, undetected pregnancy is lowest and the uterine lining is still thin enough to image clearly.

This timing is important because an HSG must not be done during pregnancy. Your doctor will confirm the dates from your cycle history, and many radiology units in India also ask for a urine pregnancy test on the day before going ahead.

How to prepare before the test

Your doctor may prescribe antibiotics, often doxycycline, starting a day or two before the test to lower the risk of pelvic infection, especially if you have a history of pelvic inflammatory disease or another higher-risk factor. A common comfort plan is ibuprofen 400 mg taken about 30 minutes before your appointment.

Empty your bladder just before the procedure and carry a sanitary pad, as light spotting or dye leakage afterward is normal. Tell the team in advance if you have ever had a reaction to iodine-based contrast or shellfish. In India, generic ibuprofen costs about Rs 50 to Rs 100 and doxycycline about Rs 50 to Rs 150, depending on brand and city.

What happens during the procedure

You lie on an examination table, much as you would for a Pap smear or pelvic exam. A speculum is placed, the cervix is cleaned, and some doctors apply a local numbing medicine before passing a thin catheter through the cervix into the uterus.

The contrast dye is then injected slowly. Real-time fluoroscopy shows the dye filling the uterus and, if the tubes are open, travelling through them and spilling into the abdomen. A few still X-ray images are captured along the way. The catheter is removed and you can usually get up and go home shortly afterward.

How much discomfort to expect

Most women describe HSG as moderate, period-like Painful Periods (Dysmenorrhea) in India: Why It Hurts and What Helps, strongest when the dye is being injected. The intense part usually lasts only 5 to 10 minutes and is uncomfortable but tolerable, especially with ibuprofen taken beforehand.

Pain can feel sharper if a tube is blocked, because the dye meets resistance and pressure builds behind the blockage. Anxiety also amplifies discomfort, so it genuinely helps to ask the team to talk you through each step and to breathe slowly. Let them know if the pain feels severe rather than crampy.

How results are interpreted

If your tubes are open, the report usually says there is free spill of dye into the peritoneal cavity, meaning the dye flowed through the tubes and out into the abdomen, the expected sign of tubal patency.

If the dye stops partway, the doctor may note a possible blockage or tubal spasm and will say which side is affected. The uterine cavity may be described as normal, septate, T-shaped, irregular, or suggestive of adhesions (scarring inside the uterus). A blocked tube on HSG is sometimes confirmed or treated with a Laparoscopy for Women in India: Procedure, Cost & Recovery, and your OB-GYN will explain what each finding means for your treatment path. Remember that one HSG is a snapshot, not a verdict.

Costs and access in India

In government settings, HSG may be free or very low cost at centres such as AIIMS and many district hospitals, and Ayushman Bharat or state schemes may cover parts of a diagnostic workup where eligible. Private pricing is commonly about Rs 3,000 to Rs 8,000 at hospital groups such as Apollo, Fortis, and Cloudnine.

At dedicated IVF chains such as Nova or Indira IVF, an HSG often falls around Rs 5,000 to Rs 12,000 depending on city and package, and using oil-based contrast can push the bill to roughly Rs 8,000 to Rs 15,000. A fertility specialist consultation usually costs about Rs 800 to Rs 2,500 on top. If cost is a worry, ask whether your test is part of a workup package, which can be cheaper than paying item by item.

Chance of conceiving after an HSG

Some women conceive in the months right after an HSG, an effect doctors call tubal flushing. The dye may clear minor mucus plugs or mild debris, slightly improving the odds that egg and sperm can meet.

Research suggests roughly 10 to 25 percent of women conceive within three to six months of an HSG, mostly when at least one tube is open and there are no major ovulation or sperm issues. Studies have linked oil-based contrast with a somewhat stronger effect in some groups. It is a helpful bonus, not a treatment, so keep tracking your fertile window and timing intercourse during those months.

Risks and after-care

HSG is generally safe. Uncommon risks include pelvic infection, an allergic reaction to iodine-based contrast, fainting, or unusually severe cramping. Infection is uncommon, often quoted at around 1 to 3 percent, which is why doctors follow ISAR- and FOGSI-aligned antibiotic precautions for higher-risk patients.

Light Spotting Between Periods: Causes, Red Flags & What To Do and mild cramps for two to three days afterward can be normal. Many doctors advise no tampons and no sex for 48 hours to let the cervix settle. See the next section for the symptoms that mean you should not wait.

When to see a doctor

  • Fever or chills
  • Foul-smelling or unusual vaginal discharge
  • Severe or steadily worsening pelvic pain that pain relief does not touch
  • Heavy vaginal bleeding (soaking through a pad in an hour)
  • Fainting, a racing heart, breathlessness, or a spreading rash (possible contrast reaction)
  • Feeling generally very unwell

Myths vs facts

Myth: HSG itself causes infertility

  • Fact: HSG is a diagnostic test, not a cause of infertility. It is done to detect blocked tubes or uterine problems that may already be making conception harder.
  • Fact: In some women, fertility may actually improve slightly after HSG because the dye can flush minor debris from the tubes.

Myth: I can skip antibiotics because the infection risk is tiny

  • Fact: Not everyone needs antibiotics, but some patients do, especially with past PID, hydrosalpinx, or other higher infection risk. Follow your doctor's plan rather than guessing.
  • Fact: Pelvic infection after HSG is uncommon, not impossible. Preventing even a small avoidable risk matters in a fertility workup.

Myth: A blocked tube means no babies, ever

  • Fact: One blocked tube does not rule out pregnancy if the other tube is open and your ovulation and your partner's sperm are reasonable.
  • Fact: If both tubes are blocked, options still exist, including further evaluation, surgery in selected cases, or IVF, which bypasses the tubes entirely.

Myth: HSG is the same as an ultrasound, so I can skip it

  • Fact: A routine pelvic ultrasound looks at the ovaries and uterus but does not reliably show whether the fallopian tubes are open.
  • Fact: HSG answers a different question, which is why doctors may order both tests in the same workup.

Frequently asked questions

Does an HSG hurt a lot?

Most women feel moderate, period-like cramps that peak when the dye is injected and last only about 5 to 10 minutes. Taking ibuprofen 400 mg around 30 minutes before the test reduces the discomfort for most people. Pain can feel sharper if a tube is blocked; tell the team if it feels severe rather than crampy.

On which day of my cycle should the HSG be done?

Usually between day 7 and day 12, counting day 1 as the first day of full flow. This is after your period ends but before ovulation, so there is no risk to an early pregnancy and the uterine lining is thin enough to image clearly. The test should never be done if you might already be pregnant.

What does 'free spill' mean on my HSG report?

Free spill of dye into the peritoneal cavity means the contrast flowed through your fallopian tube and out into the abdomen, which is the expected sign that the tube is open (patent). A report can show free spill on one side, both sides, or neither, and your doctor will explain what that means for you.

Can I get pregnant naturally after an HSG?

Yes, and some women do conceive in the three to six months after the test. The dye may flush out minor debris, an effect called tubal flushing. It works best when at least one tube is open and there are no major ovulation or sperm issues, so keep timing intercourse around your fertile window.

How much does an HSG cost in India?

It is often free or very low cost at government hospitals. In private centres it commonly costs Rs 3,000 to Rs 8,000, and around Rs 5,000 to Rs 12,000 at dedicated IVF chains. Oil-based contrast can raise the bill to roughly Rs 8,000 to Rs 15,000, plus a specialist consultation of about Rs 800 to Rs 2,500.

Is HSG safe? What are the risks?

HSG is generally safe. Uncommon risks include pelvic infection (around 1 to 3 percent), an allergic reaction to iodine contrast, fainting, or severe cramping. Tell your doctor about any past contrast or shellfish allergy, and seek urgent care if you develop fever, foul discharge, severe pain, or heavy bleeding afterward.

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