Yeah, it is bad, because that is a sign that cartlege is starting to wear off. or you've done somthing to you muscles. I have the same thing, and i am soon getting replacement surgery , but mine are...
The knee is a synovial joint. In order for it to function without agonising pain synovial fluid must be present at all times. Fluid in your knee is a good thing, without it you would be in much more...