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Hysterosalpingogram (HSG)

The hysterosalpingogram is a test typically performed in the workup of female fertility potential. The test shows whether the fallopian tubes are open or blocked. In this procedure, radiographic contrast (dye) is injected into the uterine cavity through the vagina and cervix. The uterine cavity fills with dye and if the fallopian tubes are open, dye fills the tubes and spills into the abdominal cavity.

What are indications for this exam?

→ Infertility workup
→ Evaluate uterine anomalies and masses
→ Evaluate fallopian tubes

What to expect during a hysterosalpingogram?

The hysterosalpingogramtypically takes about 15 minutes to perform. The exam is performed as following:

  • The patient lies on the table on her back.
  • The doctor places a speculum in the vagina and visualizes the cervix.
  • A thin catheter is placed through the cervical opening into the uterine cavity.
  • Contrast is slowly injected through the catheter into the uterine cavity. An x-ray is taken when the uterine cavity is filled and then additional contrast is injected so that the tubes begin to spill into the abdominal cavity. Additional x-ray pictures are taken as this occurs.
  • The patient is asked to roll to one side or the other slightly and oblique x-rays are obtained.
  • When the procedure is concluded, the catheter is removed from the cervix and vagina.