Post op breast reduction-- Increased blood flow or infection? (Photo)

Tomorrow is the two week post op mark from my breast reduction. My recovery has been extremely smooth with no issues. Yesterday, both breasts started to get red coloration to them on the lower half. I do feel like they are a bit more swollen/firm then they had been and the skin is warm to the touch. I called my surgeon and he said that it is common and is an increase in blood flow to that area. I don't have any other symptoms of infection like drainage, pain or fever but wanted thoughts?