What is a HSG?

Hysterosalpingogram. It doesn't roll off the tongue. Yesterday, during my OB/GYN rotation, I was able to watch two of these procedures and then perform the third. When the attending first asked me if I wanted to see a HSG with her - I have to be honest - I was thinking... "What is an HSG??"


What is a hysterosalpingogram (HSG)?

An x-ray (fluoroscopy) procedure performed to determine whether the fallopian tubes are patent and if there are uterine cavity defects. A radiographic contrast is injected into the uterine cavity via a small tube that is passed thru the vagina and cervix into the uterus. The uterine cavity is filled with dye and if the fallopian tubes are open... the dye will fill the tubes and eventually spill into the abdominal cavity (a good thing!)

What does an HSG help diagnose?

Primarily it is used as a test to determine the cause of infertility. It can also be used to evaluate the uterine cavity for the presence of congenital uterine anomalies, polyps, fibroids, tumors, and uterine scar tissue. The fallopian tubes are examined for pelvic scarring, blockages, or defects.

normal HSG

What are some of the risks to the patient?

1. Infection is the most common problem. It is recommend that the patient follow vaginal rest for 7-10 days (no sex, tampons, etc).
2. Mild discomfort during the procedure.
3. Small radiation exposure (less than a bladder or kidney study)







Images: http://www.drmalpani.com/hysterosalpingogram.htm