What's a Saline Sonogram?

During a saline sonogram, your doctor will place a small amount of sterile water in the uterus while performing an ultrasound. The water opens up the uterine cavity slightly so that your doctor can look for abnormalities inside the uterus such as polyps, scar tissue, fibroids, or other abnormalities.

Is a saline sonogram painful?

The procedure itself goes quickly and usually doesn't hurt, says Dr. Goje. A SIS is similar to the transvaginal ultrasound that's often performed, but with one added step: Sterile fluid is used to gently expand and hold the walls of your uterus apart.

What does a saline sonogram diagnose?

The ultrasound examination is continued while sterile saline (salt water) is put into the uterus. The saline solution fills the uterus, helping to outline the uterine walls and cavity. This shows abnormalities such as fibroids, polyps, or scar tissue inside the uterus.