There are many shitos on line explaining why surgeons davka wear green or blue.
One shita is like Reb Yid mentioned, that green and blue are opposite to red on the color wheel … enabling the surgeon to detect even small hemorrhages in the operation field.
Another shita is like DovidBT, that green scrubs and surgical linens were originally adopted in the 1950’s because blood stains often leave a greenish discolouration when laundered.
Blue was introduced in the 70’s because it is more soothing on the eyes.
But here is the pin that busts this balloon:
Surgeons in the operating room wear surgical gowns over their scrubs – so there is no nafka mina what color the scrubs are (the blood gets on the gown, the eyes see the gown not the scrub, the stains get on the gown) …so does that make you fellas trolls?!