HyCoSy and SHG Procedures
What are HyCoSy (Hysterosalpingo-Contrast Sonography) and SHG (Saline Infusion Sonohysterography),
HyCosy is a similar ultrasound-based procedure, but it uses contrast media to assess whether the fallopian tubes are open (tubal patency), which is important in evaluating fertility.
SHG (or SIS) is an ultrasound procedure used to evaluate the uterus and the uterine lining (endometrium).
During this test, sterile saline is gently infused into the uterine cavity, allowing better visualization of its structure and
helping to identify any abnormalities such as polyps, fibroids, or adhesions.
Why is HyCoSy (Hysterosalpingo-Contrast Sonography) and SHG (Saline Infusion Sonohysterography) performed?
SHG or HyCoSy is typically performed to investigate abnormal uterine bleeding, infertility, recurrent pregnancy loss, congenital uterine anomalies, and to evaluate the uterine cavity before or after surgical procedures. It may also be used to assess suspected intrauterine adhesions (synechiae or scar tissue) or
to further investigate abnormalities detected on routine ultrasound. SHG should not be performed in women who are pregnant, suspected to be pregnant, or those with an active pelvic infection.
How is SHG (Saline Infusion Sonohysterography) performed?
SHG is usually performed in the first part of the menstrual cycle after menstruation. The procedure begins with a transvaginal ultrasound examination. After this is completed, a speculum is inserted and a narrow catheter is placed vaginally through the cervix into the uterine cavity, and the ultrasound examination is continued while sterile saline is instilled into the uterine cavity. The saline solution helps outline the uterine cavity to show abnormalities such as endometrial polyps and intracavitary fibroids.
What are the Risks and Complications?
Saline hysterosonography (SHG) is generally a very safe procedure. Some women may experience mild cramping, spotting, or watery vaginal discharge afterward. The most serious—but rare—complication is a pelvic infection, which occurs in less than 1% of cases. This risk is slightly higher if there is an existing condition affecting the fallopian tubes. Contact your doctor if you develop pain or a fever within a day or two after the procedure. To help with discomfort, some doctors may recommend taking pain relief medication before the SHG.
1 Hour Before Appointment
Please take pain relief, Paracetamol and Ibuprofen one hour before your appointment. Recommended Dosage: 2x Paracetamol (eg Panadol at 500mg each tablet) & 2x Ibuprofen (eg Neurofen at 200mg each tablet)
If you have any concerns or questions about managing pain, we encourage you to speak with your referring doctor for guidance.
If you are sensitive to these medications, please ensure you have someone to drive you to and from the appointment.
