What is a Sonohysterogram?

Sonohysterogram is an ulatrasound technique in which fluid is placed inside the uterus to obtain detailed images of the uterine cavity.  It usually takes about 15 minutes.

Why is a Sonohysterogram done?

Sonohysterograms can identify the cause of many problems, including abnormal uterine bleeding, infertility, and repeated miscarriages.  It can identify fibroids, polyps, scar tissue or abnormal shape of the uterine lining.

Before the procedure:

You will be asked to empty your bladder immediately before the ultrasound.

We usually try to perform this procedure when no bleeding is present. However, since it is often used to evaluate women with unpredictable bleeding, this is not always easy to achieve.

During the procedure:

You will lie on an exam table.  An ultrasound will be performed with a vaginal probe.  After this, the probe is removed.  A speculum is placed and the cervix is cleaned with an antiseptic.  A thin plastic tube is passed into the uterus, and the speculum is removed.  The ultrasound probe is replaced, and a small amount of sterile fluid is slowly infused into the uterus.  You may experience mild cramping, but the procedure is usually not painful.  Most women are able to watch as we explain what we are seeing.

After the procedure:

Most women are able leave the office immediately after the procedure and resume all normal activities that day.  Some women may experience symptoms afterwards, such as:

  • spotting
  • mild cramping
  • watery discharge, or brown discharge from the antiseptic (iodine)

What are the Risks of Sonohysterogram?

Sonohysterograms are very safe, but there is a very small risk of infection.  Call us if you have any of the following symptoms:

  • pain, fever, foul-smelling discharge

[There’s a useful image on  under subject Sonohysterography.]

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