Such as my losiing a big hunk of cartlidge.  With a broken kneecap.
216910
I sure hope Carson Palmer does..... he he..\n\nThe Bengals Star QB,,,
668024
You could have excess fluid in your knee.  Or possibly have messed up a ligament.  If it bothers you often you should see your doctor.
46411
One time I bread a Bulldog with a Shitshue, now I have a litter of Bullshit!!
64368
It could crack or bust.
464005
Only if you broke your leg or something.
540900
you must have kneeled on it wrong so it got angry and left.
284028
probably smashed walnut shells.  its used as a pumice to remove dead skin as it's more abrasive
8505
"don't THINK it was broken" Get it looked at by someone who can help know for sure and make sure everything else is OK- minor medical clinic, school nurse, ER, whatever.\n\nMost minor crush injuries (no bone damage, minimal tissue damage) can be dealt with with asprain or other pain reliever, a basic ice program (a few minutes on, longer time off to 'rest', a few minutes on...) to relieve pain and swelling, and not using the injured part.\n\nThe catch to this is that there certainly may be some other issues involved that should be looked at. Do a doctor visit soon and avoid furture problems.
630048
Go to tools and fix it up
481922
check out the material I have enclosed.
66257
I think probably when you hit the knee it caused a blood clot to form under the skin which is common in bruising,and that swelled into 2 pea size lumps.Try taking some extra vitamin C,and if the swelling doesnt go down within a few days you can have it evaluated by a physcician.
613586
Yes, I've heard of situations like that...The bruises are from that dang knee cap sliding. It's moving around, causing bruises that start from the inside and work their way out. I don't think that normally bruises start from the inside out unless you have a problem like yours, though.
551286
no, just bruised.  Ive been boxing for years, wear gloves or you'll be out for a couple of weeks!
619958
you could have a stress fracture
260888
no, its broken. ship it to me.
470574
i think it's 'Break Stuff'
486822
if he has knee pain its likely to be of the same nature.