UNITTAS – meaning "United" in Spanish. Our hospital is conceived by the united efforts and collective participation of senior, well experienced medical professionals and professionals from other service sectors.

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Sonohysterography (SIS) in Chennai

Sonohysterography, also known as saline infusion sonohysterography (SIS), is a specialized ultrasound procedure designed to provide detailed images of the inside of the uterus. By gently infusing sterile saline into the uterine cavity, SIS enhances visibility of the endometrial lining, making it easier to identify polyps, fibroids, and other abnormalities that may not show up on standard ultrasound.

This procedure typically lasts 30-45 minutes and uses no radiation, making it a safe option for investigating reproductive health concerns.

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Why is Sonohysterography Performed?

The SIS procedure helps evaluate the shape and structure of the uterine cavity, providing detailed insights for:

  • Investigating abnormal uterine bleeding: Heavy periods, spotting between cycles, or postmenopausal bleeding
  • Assessing causes of infertility: Or recurrent miscarriages including structural abnormalities
  • Detecting uterine fibroids, polyps, or adhesions: That may distort the uterine lining
  • Evaluating endometrial thickening: Or other changes that could indicate precancerous conditions
  • Monitoring before fertility treatments: Like IVF to ensure optimal uterine conditions

How to Prepare for Your SIS Procedure

  • Timing: Schedule between days 6 and 11 of your menstrual cycle (after period ends but before ovulation) for the thinnest uterine lining
  • Medications: Take ibuprofen or paracetamol 30-60 minutes before to ease potential cramping
  • Pregnancy Check: A urine pregnancy test will be performed on-site; the procedure cannot proceed if pregnant
  • Hygiene: Empty your bladder just before the exam. Bring a pad for possible light discharge afterward
  • Health History: Inform your provider about any active pelvic infections

The SIS Procedure: Step-by-Step

1 Initial Ultrasound: Baseline images of uterus and ovaries
2 Speculum Insertion: Cervix visualized and cleaned
3 Catheter Placement: Thin catheter inserted through cervix
4 Saline Infusion: Sterile saline slowly injected to expand the uterine cavity
5 Imaging: Real-time ultrasound captures detailed images of the uterine cavity
6 Completion: Catheter removed; remaining saline drains naturally

Why Choose Unittas Hospital?

  • Expert gynaecologists with extensive SIS experience
  • High-resolution ultrasound systems for clear imaging
  • Same-day scheduling with extended hours
  • Personalized support from pre to post procedure
  • Thousands of successful diagnoses
  • Private, comfortable examination rooms
  • Direct follow-up consultation available

Frequently Asked Questions

Is sonohysterography painful?

Most women experience mild to moderate cramping similar to period pain. Taking ibuprofen 30-60 minutes before helps. The discomfort usually resolves within minutes after the procedure.

How is SIS different from regular ultrasound?

Regular ultrasound shows the uterus as a solid structure. SIS uses saline to expand the uterine cavity, allowing clear visualization of the inner lining, polyps, fibroids, and other abnormalities that may be hidden.

Can I go back to work after SIS?

Yes, most women can return to normal activities the same day. You may have light spotting or cramping for a few hours. Avoid intercourse and tampons for 24 hours after the procedure.

Explore Our Ultrasound Services

Fertility Scans

Track ovulation timing

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Pregnancy Scans

Early heartbeat detection

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Tubal Patency

Check tube blockages

HyCoSy Test →

Blood Flow

Uterine receptivity

Doppler Ultrasound →

Our Scan Locations

Visit any of our diagnostic centers for your ultrasound scan

Unittas Diagnostic Division - Tambaram

7, Duraiswamy Reddy St, West Tambaram, Tambaram, Chennai, Tamil Nadu 600045

📞 044 4012 4034 Get Directions →

Unittas Diagnostic Centre - Kelambakkam

No.141/1, Kazhipattur Village, Kelambakkam, Tamil Nadu 603103

📞 044 4012 4033 Get Directions →

Get Clear Answers About Your Uterine Health

Expert SIS procedures at Unittas Hospital.

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