About two months ago, I started to feel some occassional pain right underneath my left knee front. I compare the pain to that of a purple bump. At this time, the pain wasn t always present, I only felt it sometimes. In fact it took a long time before I could identify the exact spot. Some three weeks ago, the pain become more present- hurting when I walked, ran, climbed down stairs. As I checked the area again, I noticed two small veins right underneath my knee. Ever since I feel the pain constantly. At the very beginning I thought it was a knee problem, but now I m suspicious if it is a vein problem. I would like to know if it is and what I can do to avoid it advancing. Thank you.