HSG dye test question..

Evelina
I had the dye test that showed both tubes open, however one is 'dilated' but still open. Im so confused, everything on the internet says that it can only be dilated if its a blocked tube. Mine r both definitely open. I had a mc 2 months ago but had this test b4 i got pregnant. Could this have caused my mc? Y the heck is my tube dilated when its open?? Ugh