What Is the SSG Test?
The SSG test — Sonosalpingography — is an ultrasound-based procedure used to assess the fallopian tubes and the uterine cavity simultaneously, without using radiation. The name breaks down into:
During the SSG, a small amount of saline (salt water) or a contrast medium is injected through the cervix into the uterus. As the fluid fills the uterine cavity and flows into the fallopian tubes, a transvaginal ultrasound probe tracks its movement in real time. If the fluid flows freely through a tube and spills into the pelvic cavity, the tube is open. If it stops or pools, a blockage is detected.
| Detail | Information |
|---|---|
| Full name | Sonosalpingography (SSG) |
| Also called | HyCoSy (Hysterosalpingo-Contrast Sonography), saline sonography, SIS |
| Imaging method | Transvaginal ultrasound |
| Medium used | Saline (most common) or echogenic contrast agent |
| What it examines | Fallopian tube patency + uterine cavity shape + ovaries |
| Radiation | None |
| Anaesthesia | Not required |
| Duration | 15–30 minutes |
| Cycle timing | Days 6–10 of the menstrual cycle |
| Cost in India | ₹2,000 – ₹6,000 |
Why Is the SSG Test Done?
The SSG is ordered as part of the standard female fertility evaluation. Fallopian tube problems account for approximately 25–30% of female infertility cases — and the SSG is one of the primary tools used to detect them.
Assess Fallopian Tube Patency
The primary purpose. The SSG determines whether each fallopian tube is open (patent) or blocked, and — if blocked — approximately where along the tube the obstruction is located. This is essential because natural conception and IUI both require at least one open tube.
Evaluate the Uterine Cavity
The saline filling the uterus outlines its interior, allowing the sonographer to detect structural abnormalities such as fibroids protruding into the cavity, endometrial polyps, a uterine septum, or scarring (Asherman's syndrome). These can affect embryo implantation.
Assess the Ovaries Simultaneously
Because SSG uses ultrasound, the ovaries can be assessed in the same appointment — checking for antral follicle count (AFC), ovarian cysts, or signs of PCOS. This multi-organ assessment in a single session is an advantage SSG holds over HSG.
Screen Before IUI or IVF
IUI requires a patent tube — SSG confirms this before the treatment cycle begins. Even before IVF (where the tubes are bypassed), SSG or HSG is ordered to detect hydrosalpinx (a fluid-filled blocked tube) which reduces IVF implantation success and requires surgical management before embryo transfer.
How Does the SSG Test Work? Step by Step
The SSG procedure follows a clear sequence. Understanding each step helps reduce uncertainty about what to expect:
Preparation
You will be advised to take ibuprofen (400–600mg) approximately one hour before the appointment to minimise cramping. An antibiotic may be prescribed to reduce the very small risk of infection. You will change into a hospital gown and be positioned on an examination table with your knees bent — the same position as a pelvic exam.
Transvaginal Ultrasound — Baseline Scan
A transvaginal ultrasound probe is inserted into the vagina. The sonographer performs a baseline scan of the uterus and ovaries before the fluid is introduced — checking their baseline appearance, the endometrial lining, and confirming cycle day appropriateness.
Speculum and Catheter Insertion
A speculum is placed to visualise the cervix. A thin, flexible catheter is gently passed through the cervical opening into the uterus. A small balloon at the catheter tip is slightly inflated to hold it in place. This step may cause a brief cramp.
Saline Injection
Sterile saline (or an echogenic contrast agent) is slowly injected through the catheter. As it fills the uterine cavity under gentle pressure, the uterine walls distend slightly — allowing the interior shape to be clearly seen on the ultrasound screen. The sonographer inspects for any filling defects (suggesting polyps, fibroids, or septa) at this stage.
Fallopian Tube Assessment
As the fluid continues to flow, the sonographer observes whether it enters and passes through each fallopian tube. The key sign is fluid spilling into the pelvic cavity around each ovary — confirming that tube is open. If fluid stops or pools, a blockage is indicated at that point.
Equipment Removed and Rest
The fluid injection stops, the catheter and speculum are removed, and you rest briefly. Any residual saline is naturally reabsorbed by the body. Mild cramping may continue for 15–30 minutes. Most patients can leave the clinic within 1–1.5 hours of arriving.
📌 What the fluid flow tells the doctor
- Fluid fills uterus and flows freely through both tubes → spills around both ovaries: Both tubes open (normal result)
- Fluid flows through one tube but not the other: One tube blocked
- Fluid fills uterus but does not enter either tube: Both tubes blocked at the cornual (uterine) end
- Fluid fills the tube but does not spill distally: Distal blockage — may indicate hydrosalpinx
- Irregular filling pattern inside the uterine cavity: Possible polyp, fibroid, or septum
When Is the SSG Test Recommended?
Your doctor may recommend an SSG in any of the following situations:
- Difficulty conceiving after 6–12 months of trying — SSG is a standard first-line investigation for female infertility when a tubal factor is suspected
- Before starting IUI — confirms at least one tube is open and the uterine cavity is suitable for insemination
- Before IVF — rules out hydrosalpinx or uterine cavity issues that would reduce IVF success
- History of pelvic inflammatory disease (PID), chlamydia, or gonorrhoea — these infections are leading causes of tubal scarring
- Previous ectopic pregnancy — risk of ipsilateral tube damage and recurring ectopic is elevated
- History of pelvic or abdominal surgery — adhesions from surgery can affect tube function
- Recurrent miscarriage — uterine cavity assessment is part of the investigation
- Unexplained infertility — SSG is part of the standard unexplained infertility workup
SSG vs HSG Test — Key Differences
SSG and HSG evaluate the same structures — the fallopian tubes and uterine cavity — but use entirely different technology. Understanding the distinction helps you know what each test can and cannot tell you.
| Feature | SSG (Sonosalpingography) | HSG (Hysterosalpingography) |
|---|---|---|
| Imaging technology | Ultrasound | X-ray fluoroscopy |
| Medium injected | Sterile saline or echogenic contrast | Iodine-based contrast dye |
| Radiation | ❌ None | ⚠️ Small dose (equivalent to a chest X-ray) |
| Ovaries visible? | ✅ Yes — assessed simultaneously | ❌ No — X-ray does not visualise ovaries |
| Uterine lining (endometrium) | ✅ Visible on ultrasound | ❌ Not visible on X-ray |
| Fallopian tube shape detail | Good — real-time flow observation | Excellent — lumen outline clearly visible on static image |
| False positive risk (spasm) | Lower — real-time dynamic imaging reduces spasm misinterpretation | Higher — spasm can be misread as blockage on static X-ray |
| Cost in India | ₹2,000 – ₹6,000 | ₹3,000 – ₹8,000 |
| Iodine allergy risk | Not applicable (saline used) | Relevant — inform doctor of iodine allergy before HSG |
| Commonly available in India | Fertility clinics with ultrasound capability | Fertility clinics + hospital radiology departments |
💡 Which test does your doctor choose?The decision is usually based on the clinic's equipment and specialists' preference. SSG is increasingly preferred at fertility-specific centres because it provides more information per visit (ovaries, endometrium, and tubes together) without radiation. HSG remains the standard in settings with strong radiology infrastructure and when detailed tube lumen imaging is needed.
Read our full HSG test guide — step by step with cost, pain level, and what results mean →
Is the SSG Test Painful?
The SSG involves inserting a thin catheter through the cervix and injecting fluid into the uterus. Most women describe the discomfort as mild to moderate cramping — similar in feel to period pain at its peak. Discomfort is most noticeable during saline injection, when the uterus fills and briefly distends, and subsides once injection stops.
Individual experience varies. Women who have had children, or who have a more relaxed cervix, often report minimal discomfort. Women with cervical stenosis or anxiety may find it more uncomfortable.
💊 How to reduce discomfort
- Take ibuprofen 400–600mg one hour before the appointment — this is the most effective single step
- Ask if a cervical local anaesthetic spray is available at the clinic before catheter insertion
- Breathe slowly and steadily during the procedure — conscious breathing reduces muscle tension
- Tell the sonographer if discomfort becomes significant — the injection speed can be slowed
- Bring a sanitary pad for any light spotting afterwards
What Do SSG Test Results Mean?
Results are available in real time during the procedure and confirmed in a written report by the specialist. The key findings fall into these categories:
✅ Both tubes open — Uterine cavity normal
What it means: No structural barrier to natural conception identified. Investigation continues to other fertility factors.
Typical next step: Evaluate ovulation, ovarian reserve (AMH), and male partner sperm analysis. Proceed to IUI or natural conception.
⚠️ One tube open, one tube blocked
What it means: One route to the uterus is intact. Natural pregnancy remains possible through the open tube.
Typical next step: Natural conception or IUI may be recommended. IVF may be considered if conception does not occur within 3–6 months or if other factors are present.
❌ Both tubes blocked
What it means: Natural conception is not possible — egg and sperm cannot meet. Laparoscopy may be recommended to confirm and assess severity.
Typical next step: IVF is typically the most effective path — it bypasses the fallopian tubes entirely.
🔵 Hydrosalpinx detected (fluid-filled blocked tube)
What it means: Fluid accumulated in a distally blocked tube. Known to reduce IVF implantation rates by approximately 50%.
Typical next step: Surgical removal or sealing of the affected tube is recommended before IVF to protect embryo transfer outcomes.
🔺 Uterine cavity abnormality
What it means: Filling defect, irregular outline, or structural issue identified in the uterine cavity — suggesting polyp, fibroid, septum, or scarring.
Typical next step: Hysteroscopy arranged for direct visualisation and treatment of the uterine cavity.
⚠️ Note on false positives: As with HSG, tubal spasm — a temporary involuntary contraction of the tube — can occasionally mimic a blockage during SSG. Real-time ultrasound imaging reduces (but does not eliminate) this risk. If your SSG shows an unexpected blockage, your doctor may recommend a repeat test or laparoscopy before making major treatment decisions.
Advantages of SSG Over HSG
No Radiation
SSG uses ultrasound — no X-ray exposure. This is particularly relevant for younger patients, frequent repeat testing, or women concerned about accumulated radiation dose.
Ovaries Assessed Simultaneously
The transvaginal ultrasound probe allows real-time assessment of both ovaries — antral follicle count, cysts, and PCOS signs — as part of the same appointment. HSG cannot do this.
Endometrium Visible
Ultrasound shows the uterine lining thickness and texture — additional information for the fertility assessment that X-ray does not provide.
Real-Time Dynamic Imaging
Fluid flow is observed continuously as it moves — reducing the risk of misinterpreting a brief tubal spasm as a fixed blockage, which is a known limitation of static HSG images.
No Iodine Contrast Required
Saline (salt water) is used — making SSG safe for women with known iodine allergies, who cannot safely undergo HSG with iodine-based contrast dye.
Generally Lower Cost
SSG with saline is typically less expensive than HSG in India (₹2,000–₹6,000 vs. ₹3,000–₹8,000), though this varies by facility.
What Happens After the SSG Test?
Recovery from SSG is straightforward. Here is what to expect in the hours and days that follow:
- Immediately after: Rest in the clinic for 15–20 minutes. Light cramping similar to period pain may continue. A sanitary pad handles any light spotting or residual saline discharge. Most women drive themselves home or return to work the same day.
- Same day: Resume normal activities. Ibuprofen 400mg every 6–8 hours as needed for cramping. Avoid swimming or baths for 24 hours — showers are fine.
- 1–2 days after: Spotting and discharge resolve. The residual saline is naturally reabsorbed by the body.
- Follow-up consultation: Your fertility specialist reviews the SSG findings with you in the context of your full workup and discusses the recommended next steps.
✅ When to seek medical attention after SSG
Contact your clinic if you develop fever above 38°C, increasing rather than decreasing pelvic pain, heavy vaginal bleeding, or foul-smelling discharge in the 2–5 days following the procedure — these may indicate infection and should be evaluated promptly.
Next steps based on SSG findings:
Continue investigating other fertility factors — ovulation, AMH, sperm analysis. Proceed to IUI or natural conception with optimised timing.
Natural conception or IUI may be tried via the open tube. IVF if further factors are present or after 3–6 months without success.
Laparoscopy for confirmation. IVF is the recommended treatment — bypasses both tubes entirely.
Hysteroscopy for definitive evaluation and treatment of the uterine cavity before fertility treatment.
Related Guides and Next Steps
HSG Test Guide
How it differs from SSG — step by step, cost, results explained
Blocked Fallopian Tubes
What SSG blockage findings mean for your fertility
IVF Treatment Guide
When tubes are blocked — how IVF bypasses them
AMH Test Guide
Ovarian reserve testing — usually done alongside SSG or HSG
How to Choose a Clinic
Structured guide for evaluating fertility specialists
Fertility Centres in Bangalore
Verified clinics offering SSG, HSG, and tubal evaluation
FAQs About SSG Full Form and Test
What is SSG full form in medical?
SSG stands for Sonosalpingography. It is an ultrasound-based test used to evaluate the uterus and fallopian tubes — primarily to detect blockages causing infertility. Saline or a contrast medium is injected through the cervix, and its movement through the fallopian tubes is visualised in real time using ultrasound.
Is SSG better than HSG?
They complement each other rather than one being definitively superior. SSG uses ultrasound — no radiation, real-time pelvic imaging, and simultaneous assessment of ovaries and the uterine lining. HSG uses X-ray fluoroscopy — better tube lumen visualisation and a static image for specialist review. The choice depends on the clinic's equipment and the doctor's preference. Some centres offer both.
How long does the SSG test take?
The procedure takes approximately 15–30 minutes. Including preparation and a short rest, total clinic time is around 45–60 minutes. Results are visible in real time during the scan.
Can I get pregnant after an SSG test?
SSG is diagnostic — it identifies whether tubes are open, not a treatment. If both tubes are open and other fertility factors are normal, natural conception or IUI in subsequent cycles is possible. Some evidence suggests a mild 'flushing effect' from saline-based tests, though this is not reliable enough to use SSG as a fertility treatment.
Is the SSG test painful?
Most women experience mild to moderate cramping — similar to period pain — particularly during saline injection. No anaesthesia is required. Taking ibuprofen 400–600mg about one hour before significantly reduces discomfort. Cramping typically eases within 15–30 minutes of the procedure.
When in my cycle should I have the SSG test?
SSG is typically scheduled between Days 6 and 10 of the menstrual cycle — after the period ends and before ovulation. This timing ensures the uterine lining is thin for clear imaging and avoids interfering with a potential conception.
How much does the SSG test cost in India?
Approximately ₹2,000 to ₹6,000 depending on city and facility type. Consultation fees are usually charged separately. Private fertility clinics are typically at the higher end of this range; government hospital radiology departments at the lower end.
Does a normal SSG result mean I can definitely get pregnant?
No. A normal SSG rules out tubal blockage and uterine cavity abnormalities as causes of infertility — it does not confirm that all other fertility factors (ovarian reserve, sperm quality, ovulation, implantation) are normal. It is one important piece of the complete fertility assessment.
Find Clinics Offering SSG Testing Near You
SSG is available at fertility-specific clinics with transvaginal ultrasound capability. Use our directories to find a clinic near you:
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