Hysterosalpingogram, x-ray imaging of the uterus and fallopian tubes after instillation of a contrast liquid, provides information important to the evaluation of infertility and miscarriage.

The hysterosalpingogram is performed in the following way: The physician will perform a pelvic examination and insert a speculum into the vagina. A narrow plastic tube will be threaded into the cervix. An iodine-based x-ray dye will be squirted through the tube into the uterus. The procedure will be visualized by fluoroscopy and recorded on x-ray film.

The hysterosalpingogram depicts a silhouette of the inside of the uterus and fallopian tubes. With regard to the uterus, congenital malformations, fibroids, polyps, and scar tissue may be detected within the uterus. Blockage of the fallopian tubes either near their attachment to the uterus or at their distal end may also be seen. Finally, the physician may get some idea as to the conditions surrounding the fallopian tubes from the manner in which the x-ray dye spreads out of the tubes into the pelvis.