![]() As the contrast enters the tubes, it outlines the length of the tubes and spills out their ends if they are open. The contrast will be seen as white on the image and can show the contour of the uterus as the liquid travels from the cannula, into the uterus, and through the fallopian tubes. The doctor gently fills the uterus with a liquid containing iodine (a fluid that can be seen by x-ray) through the cannula. Her cervix is cleaned, and a device (cannula) is placed into the opening of the cervix. The gynecologist or radiologist then examines the patient’s uterus and places a speculum in her vagina. How is a hysterosalpingogram done?Ī woman is positioned under a fluoroscope (a x-ray imager that can take pictures during the study) on a table. It is usually done after the menstrual period ends but before ovulation. HSG is an outpatient procedure that usually takes less than 5 minutes to perform. Download a PDF of this fact sheet here What is a hysterosalpingogram (HSG)?Ī hysterosalpingogram or HSG is an x-ray procedure used to see whether the fallopian tubes are patent (open) and if the inside of the uterus (uterine cavity) is normal.
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