When is hysterosalpingography done by x-ray?

All the time!: Hysterosalpingography (hsg) is always done with x-rays. It involves injecting x-ray contrast material ("dye") into the uterus via a cervical catheter to try to visualize the fallopian tubes and document that they are patent (open). The exam can also show abnormalities of the uterus. Hsg is frequently used as part of an infertility evaluation.

Always: HSG -hysterosalpingography is a test to see the inside of the uterus and fallopian tubes. It is performed with (x-ray) flouroscopy. During the procedure a radiopaque dye is injected into the uterus with the expectation that during the procedure the dye will be seen in the tubes and exiting the tubes. This is to make sure there isn't a blockage. Yes, HSG is done by X-ray.