About Sonohysterogram or Sono-HSG
A sonohysterogram (SHG) is an ultrasound exam that uses sterile saline to separate the front and the back walls of the endometrium (uterine lining). This procedure enables the physician to evaluate the shape of the uterus and whether there are any lesions within the lining that may impact implantation for pregnancy. During the exam, the doctor may also test whether your fallopian tubes are open.
The test is performed by a physician with the help of a sonographer between Day 5 and Day 11 of your menstrual cycle. The test lasts approximately 15 minutes.
A recent baseline pelvic ultrasound should be performed prior to completing your SHG. A pelvic ultrasound and SHG cannot be performed on the same day as per OHIP billing specification.
You may also get this exam for the following indications:
- Abnormal menstrual bleeding (extremely heavy or unusually light periods)
- Abnormal menstrual cramps
- Before IVF treatment (to confirm there are no uterine problems that may interfere with embryo implantation)
- Mid-cycle spotting
- Pelvic pain or pressure
- Post-menopausal bleeding
- Recurrent pregnancy loss (two or more miscarriages in a row)
During the exam, the doctor may also test your fallopian tubes. In this case, a small amount of foam-based contrast will be pushed through the fallopian tubes to see if the fallopian tubes are open or blocked.
Steps to Prepare for a Sonohysterogram
ALLERGY ALERT : Notify the sonographer if you have a latex allergy (a latex probe cover will be used as a protective cover. An alternative will be provided for those with latex sensitivity).
Investigative and Pre-Treatment Ultrasounds
Ultrasounds that Occur During Treatment
Follicle Tracking Ultrasound
A vaginal ultrasound performed during an IUI, IVF or Egg Freezing cycle to assess the number and growth of your follicles. This test helps the doctor know when your ovaries are ready.