Hysterosalpingography (HSG) is a fertility test that helps your doctor see whether your fallopian tubes are open, which is necessary for fertilization of an egg. Blocked fallopian tube can prevent sperm traveling to the uterus, causing fertility problems.
HSG uses X rays to examine your uterus. Contrast material (a substance) is injected via a tube into your vaginal canal and cervix to the uterus, fallopian tubes and is visible on X rays.
The procedure typically takes 5 minutes. It is performed in an outpatient environment, such as a radiology office. Your provider will insert the speculum to widen your vagina in preparation for the test.
A thin tube is then threaded through your vagina and cervix to reach your uterus. This is called tubal catheter. It may have a ballon at the end of the tube to hold it in place as you are injected dye.
After the dye is injected, you’ll be asked to lay flat on a desk. Your provider will then perform a series or X rays. The Xrays will reveal the flow of the dye through your fallopian tube and uterus.
The Xrays will also reveal any blockages within your fallopian pipes. These can result from an abnormal cavity in the uterus, adhesions and polyps. In some cases, X-rays may indicate that a surgical procedure is required to correct the problem.