Well a few days ago I noticed that Leon, my young english lop, was limping when I put him out in his pen to play. I immediately took him back to his cage, but then put him in one of my junior cages to limit his movement. He holds it awkwardly and he's awkward enough as it is with his growing body. I was feeling his legs and I noticed his knee(?) was swollen. He also has the foot relaxed and it doesn't respond to poking or pinching like his thigh/leg muscles.I don't know what he did to himself but he's been in that small cage for about 4 days now. I bring him out for a little bit each day onto the deck so he can stretch out. I'm sure being in that cage is no fun! Could he of displaced his knee by doing something stupid in his cage? We enjoy him very much and would like to help the poor guy out.