A sonohysterogram (or “saline sonogram”) is used to evaluate the inside of your uterus to reveal abnormalities like polyps, fibroids, or scar tissue that may inhibit your chances of getting pregnant.
We also perform sonohysterograms in the case of abnormal uterine bleeding and prior to an In Vitro Fertilization (IVF) cycle to make sure there are no abnormalities that would interfere with an embryo implanting.
Here’s how it works: Your doctor will instill sterile saline inside your uterine cavity with a thin, flexible tube. We’ll then perform a transvaginal ultrasound. The uterine walls normally touch each other, but the placement of saline expands the inside of the uterus, allowing us to see anything that may be protruding into the otherwise collapsed uterine cavity. For this reason, a sonohysterogram gives us far more information than a transvaginal ultrasound alone.
If your sonohysterogram is performed before an IVF cycle, we typically perform a mock embryo transfer at the same time to gather necessary information about the anatomy of your cervix and uterus before the actual embryo transfer. Typically, a sonohysterogram is not painful and does not require any pain medication.