Sonohysterogram

A sonohysterogram is an ultrasound test used to provide images of the inside of a woman’s uterus. It is primarily used to evaluate the internal lining of the uterus for unexplained vaginal bleeding that may be the result of an abnormal growth. It is performed in an ultrasound room in the radiology department. During the procedure, a radiologist (doctor who specialized in the use of x-rays) takes images as water is injected into the uterus through a catheter (a long, thin, hollow plastic tube). The water makes it easier to see the internal lining of the uterus on ultrasound. It can also help pinpoint the location of problems.

Before the Procedure

  • The procedure will be scheduled only on days 6-12 after the first day of your last menstrual period.
  • A day or two before the exam, avoid sexual intercourse, stop using creams or other vaginal medications, and avoid douching.
  • You may take over-the-counter pain medications a few hours before the test.
  • No food or liquids for 2 hours prior to the procedure. However, you may take all regular medications as scheduled with small sips of water.

During the Procedure

  • A baseline pelvic ultrasound will be performed first.
  • Then, you will be positioned lying on your back on the ultrasound table with your knees bent, much like a Pap test.
  • An instrument called a speculum is inserted into the vagina to hold it open.
  • The cervix is cleansed with an antiseptic solution.
  • Then a catheter (a long, thin, hollow plastic tube) is guided through the cervix and into the uterus.
  • Once the catheter is in place, the speculum will be removed and the transvaginal ultrasound probe will be re-inserted into the vaginal canl. Water is then injected through the catheter.
  • The water may stretch the uterus and tubes, causing some cramping or pain.
  • As the water flows into the uterus, ultrasound images are taken.

Potential Risks and Complications

  • Infection in the uterus

After the Procedure

  • You will likely have a discharge with some bleeding as some of the water drains out of the uterus. Use pads, not tampons, until the discharge is gone.
  • For a few hours you may feel cramping. This can usually be relieved with over-the-counter pain medications.
  • Call your doctor if you have any of the following:
    • A fever over 101°F
    • Heavy vaginal bleeding (more than a pad an hour for 2 hours)
    • Severe or increasing pelvic pain
    • Foul-smelling or unusual vaginal discharge
  • If any further questions or complications arise and you do not know what to do, please call the radiology department at Summit Healthcare Regional Medical Center at (928) 537-4375, ext. 6549. For questions after hours please ask for ext. 6332.
  • Your results will be sent to your doctor by the following day.