This is what the result looks like. The black triangular shadow (red arrow) is the uterus filled with the dye. The thin black lines marked with the small yellow arrows are the fallopian tubes and are clearly seen. At the end of the tube, the black line gets thicker and shows that the dye has come out of the tube, showing that the tube is not blocked.
A hysterosalpingogram is a test done in the radiology (x-ray) department so you are awake. It involves a procedure similar to the taking of a pap smear. A dye is injected into your uterus and over the next minute or so, it makes it’s way through the fallopian tubes and demonstrates whether these are patent (open) or blocked. The whole procedure takes less than five minutes and involves no surgery.