I grazed my knee and bruised it at the skate park and now something is moving in there...?

Question

I grazed my knee and bruised it at the skate park and now something is moving in there...?
I was skating (aggressive blading ) on the skate park, and was meant to go up the ramp, but i chickened out at the last minute and at full sleep (after going down two other ramps, my knee plummeted into the wall. it grazed and i got a lovely bruise around it, the bruise ad cut have not cleared up, but not when I touch my knee its very sore, and there feels as if there is something moving in there, my other knee feel different less squidgy and less movement.. what could this be and what do I do about it?

Answer 1

Go see a doc and get x-rays, could be a broken Petella (knee cap)

Answer 2

There must be an object in there. To to a doctor so they can remove it before it gets infected.

Answer 3

There may be a object or bug in there, or it may just be nerves, visit a doctor