Have a 150-200 pound calf found limping. Has a swelling about as big as a softball cut in half just below hip area. Animal does put some weight on the leg when walking; holds it up some if running. Appears healthy otherwise. (internal bruise or hip out of socket/broken????) I suppose he was butted or hooked by another cow maybe trying to steal milk, who knows. Took animal to vet who examined and the knot is blood; didn't give any medication. I am wondering about vit K. to decrease the internal bleeding and if others have any ideas on what to do. I have about decided the let nature take its course. The pair is in a small trap to isolate and so I can observe daily and to prevent further injury.