Radiology Terms


What is Hysterosalpingography? Understanding the Radiology Test and Procedure

Hysterosalpingography (HSG) is a medical imaging test that takes X-ray images of the uterus and fallopian tubes. Scans show the inner shape of the uterus and fallopian tubes, to help identify blockages or narrowings. HSG also helps physicians investigate whether a miscarriage is related to a problem in the uterus. 

To perform a HSG, the doctor threads a thin tube through the vagina and cervix, injecting a contrast dye into the uterus. Then, fluoroscopy, an imaging technique that produces an “X-ray movie,” follows the contrast as it goes through the uterus and fallopian tubes, showing if an abnormality exists. If the tubes are blocked, it could indicate risk for infertility. HSG can also help confirm if a tubal ligation was successful.