His leg could have got caught in something, like an exercise wheel.
His wheel is fixed, meaning it has card board running through the metal wires. It isnt from his wheel, He deosnt even run on it, I took it out today because he doesnt use it.

He didnt have an exercise wheel in his cage at the store I got him from. So that couldent be it. It isnt his leg because his legs are fine he thumps and digs and everything.

Maybe his last owner droped him on a hard wood floor or something??

it is like he is mentally disabled..