Hysterosonogram(HSN) vs Hysterosalpingogram (HSG)

According to the U.S. Centers for Disease Control, around 6.1 million women in the United States between ages 15-44 have difficulty getting pregnant or staying pregnant. If you are like one of these millions of other women in the U.S. who have had trouble conceiving, your doctor may suggest either a test called a hysterogram or a hysterosalpingogram. While these procedures share a prefix, they are used differently depending on every case. Below, we will discuss what each is used for and point out the differences between them.

What is a hysterosonogram?

A hysterosonogram—also called an HSN test—is a minimally invasive ultrasound procedure that can help to determine if you have issues inside the uterus that can impede your ability to become pregnant. 

What happens during a hysterosonogram? 

Your doctor or radiologist will insert fluid into the uterus through the cervix in order to examine the uterine lining. The fluid allows your doctor or radiologist to more easily identify internal structures during the ultrasound.

Why do I need a hysterosonogram?

A hysterosonogram is different from a traditional sonogram or ultrasound. The test can better detect abnormalities on the inside walls of the uterus because of the fluid injected inside the uterus. The liquid strategically works to separate the walls of the uterus from each other, making it easier to see any issues that may have been hiding. 

What is a hysterosonogram used to diagnose?

A hysterosonogram is often recommended for women who are having difficulty conceiving a pregnancy or for women who have had one or more miscarriages. Research has shown that a hysterosonogram can detect around 90% of issues inside the uterus. Some of these abnormalities include:

  • Polyps
  • Fibroids
  • Scar tissue
  • Uterine septum
  • Bicornuate Uterus

What is a hysterosalpingogram

A hysterosalpingography or HSG test is an X-ray procedure that is also used to view the inside of the uterus as well as the fallopian tubes. Hysterosalpingography employs a form of x-ray called fluoroscopy that can create real-time, movie-like images. This procedure is used to see if the fallopian tubes are blocked in any way. 

Why do I need a hysterosalpingogram?

This procedure is used to examine the uterus and fallopian tubes of a woman who is having difficulty becoming pregnant as well as to examine miscarriages and attempt to determine the cause. During this procedure, your radiologist may occasionally be able to open blocked fallopian tubes in an effort to help the woman become pregnant after.

What is a hysterosalpingogram used to diagnose?

An HSG test is used to investigate any issues that may be causing a woman to experience difficulty becoming pregnant by evaluating the shape of the uterus and looking for blockages in the fallopian tubes. The main difference between these procedures is what they are looking for and how they are performed. A hysterosonogram is looking to open the walls of the uterus to find any hidden issues, while the hysterosalpingogram is mostly used to identify or correct blockages in the fallopian tubes. Whether you are looking to schedule either fertility test in Manhattan, Rosetta Radiology can be your go-to imaging center for both.