Hard to say: Good thing is that it doesnt hurt. Was there any injury involved? How long has it been like this? There are different reasons for swelling, but lot of them involve pain: knee injury, arthritis (degenerative changes). This is one that is hard to say without seeing your knee and examining it.
Answered 9/29/2016
5k views
Arthritis or interna: Arthritis or internal damage. Needs evaluation by orthopedic surgeon or rheumatologist.
Answered 7/10/2016
5k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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