Information is not clear. Leg means the part between the knee and the foot. If you have no pain, there's nothing to worry about. Pain is the only indicator which should make you go for a check up. Another alarming sign is swelling. If you notice any kind of swelling in the leg, please for an examination.
Inflammation is often associated with pain. You cannot have inflammation and not have pain. If it's just redness, it should go away with rest or with the limbs in elevation for a while. Also try applying ice
Next Steps
go for an examination if you have pain