My father had slight swelling on his leg below knee.And when he sits down or stands up it pains on knee and its below muscles.This pain is from many years but very less.But now it grow much.But this pain is only when he try to stand up or try to sits down. With reference to some consultation he had done blood test for two reports which are attached below. My father is shopkeeper.He usually stands for much time and usually sits for much time. He always feel tightness in upper part of leg that is above knee. His sugar level is normal and bp is somewhat around 135-140 always. Please give me some suggestions. Thanks