The Tubal Factor
Because open and functional fallopian tubes are necessary for conception, 8
tests to determine tubal openness (patency) are important. Tubal factors,
as well as factors affecting the peritoneum (lining of the pelvis and
abdomen), account for about 35% of all infertility problems. A special
x-ray called a hysterosalpingogram (HSG) (Figure 3) can be performed to
evaluate the fallopian tubes and uterus (see ASRM patient factsheet titled
Hysterosalpingogram). During an HSG, a special fluid (dye) is injected
through your cervix, fills your uterus, and travels into your fallopian tubes.
If the fluid spills out the ends of the tubes, they are open. If the fluid does
not spill out the ends, then the tubes are blocked. If the HSG shows blocked
fallopian tubes, your physician may perform a laparoscopy to assess the
degree of tubal damage.