Saline Sonohysterogram (SHG)

Another method of determining the condition of the uterus is through a Saline Sonohysterogram. 
 
How the procedure is done:  Your provider will then place a sterile speculum into the vagina in order to both visualize and clean the cervix.  Local anesthesia may also be applied.  A small catheter is then placed into outer most opening of the cervix, and through it sterile saline (water) is instilled through the catheter.  As the fluid enters the uterus, your provider will simultaneously perform a vaginal ultrasound in order to assess for any cavitary abnormalities, such as endometrial polyps, uterine fibroids, and scar tissue. This procedure can be performed in our offices or surgical center and does not typically require anesthesia.

What are the risks?   Risks of the SHG may include bleeding and infection.  Typically, bleeding lasts for 1-2 days after the procedure.  If bleeding lasts longer, or is heavier than a normal period, your provider should be contacted.  The risk for infection is <1%, and you may be given antibiotics before or after the procedure to help to minimize this risk.  The test itself would not harm a pregnancy if conception occurs later in the cycle; however, pregnancy tests are routinely done prior to the procedure to ensure that the test is not performed during pregnancy.
 
What this test tells you: This procedure can be more useful in detecting intrauterine abnormalities, such as fibroids, endometrial polyps, and Asherman’s Syndrome (a condition involving an excess buildup of scar tissue). 
 
For more information on SHG:
http://www.reproductivefacts.org/FACTSHEET_Evaluation_of_the_Uterus/
 

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