A hysterosalpingogram (HSG) is an x-ray examination of the uterus and fallopian tubes that helps to evaluate the structure and the shape of the uterus, as well as to determine the openness of the fallopian tubes. A contrast dye is inserted through a catheter into the cervix, and then begins to fill the uterus while images are being taken. This test is scheduled by our office nurses, and is done in the outpatient radiology department of the hospital. If your doctor orders this test, please call our office on the day that your cycle BEGINS, so that we may have adequate time to schedule it for you.