Hi All A few weeks ago my cat was hit by a car and loss the use of his tail. On Friday (2 days ago) his tail was amputated as he had regained control of his bladder (still waiting on bowl control). This morning I have noticed some bloody urine in the litter tray and i am very concerned. There was nothing yesterday and he managed to slip his collar in the night so he may have hurt himself in the process (his bum area also looks very sore). I have a vets appointment tomorrow anyway to check he is doing okay, do you think I should be worrying.