A hysterosalpingogram (HSG) is a radiologic procedure used to evaluate the shape of the uterine cavity and the patency of the fallopian tubes. During this procedure, a clear liquid is injected through the cervix into the uterine cavity and fallopian tubes, and X-ray images are taken to visualize the flow of the contrast.
In some cases, the pressure of the contrast injected during the HSG can indeed help to clear blockages in the fallopian tubes. These blockages might be due to mucus plugs, debris, or minor adhesions, and the procedure can sometimes help to dislodge them, thereby improving tubal patency and potentially enhancing fertility. This therapeutic effect of the HSG is sometimes referred to as "tubal flushing."
It's crucial to remember that the HSG is not a guarantee for clearing blocked fallopian tubes, and the success rate varies according to the severity and origin of the obstruction. In order to completely eliminate some obstructions and increase fertility, additional procedures, such as fallopian tube recanalization or laparoscopic surgery, may be necessary.
Fallopian tube recanalization (FTR), also referred to as selective salpingography, is a minimally invasive, non-surgical procedure used to reopen blockages in one or both of the fallopian tubes. This low-risk procedure is recommended as the first intervention for patients with blockage of the proximal fallopian tube, where the uterus meets the fallopian tube.
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