Depends what part: If you are swollen in the front of the knee, like a bulge over the kneecap, it could be bursitis. If the whole knee is swollen, it could be a ligament tear or meniscus tear, or even a fracture if you fell hard enough. If you cannot walk, you should get it checked out and get and xray.
Answered 3/14/2015
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A doctor has provided 1 answer
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