Veins vs arteries
As drs. Gupta and mitsos said, the difference has to do with what veins and arteries do.
affects blood flow back to the heart
. Pad affects blood flow away from the heart and out into the body. Pad pain occurs with activity, improves with rest and is better when your legs are down. Cvi worsens when your legs are down and not moving. Leg elevation
helps the pain.