Would having painless, visible, lumpy veins pose as a roadblock to HRT? From what I read superficial thrombophlebitis has no connection to deep vein thrombosis, and is more often not a concern, in general. I just wonder if estrogen would agitate them towards unnecessary clotting.

There is a website that you can find out more:

www.healthline.com/health/superficial-thrombophlebitis

I don't know if it is a dash or hypen between the 2 words

Oral estrogen appears to affect coagulation to a far greater extent than non-oral, especially if it is NOT bio-identical.