A special X-ray procedure that uses dye to examine the shape and patency of the fallopian tubes and the uterine cavity.
During an HSG, radiologist fills the uterine cavity and fallopian tubes with dye while an X-ray machine records images. The dye makes the uterus and fallopian tubes stand out on the X-ray, which helps the provider diagnose issues such as:
Blocked fallopian tubes
An irregularly shaped uterus
The success of a tubal ligation or tubal reversal.
HSGs are often used to evaluate infertility, subfertility, repeat miscarriages, and pelvic scarring. They may be performed if someone is having trouble getting pregnant or has experienced repeated miscarriages.
HSGs are usually scheduled 5–10 days after the start of a menstrual period.
