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Hi! I have a 13yr old Jack Russell who has always been healthy. Yesterday, it appeared that he cut his back left paw/nail area. He bled quite a bit. Today, our vet removed the entire nail and said it would not grow back. Sailor has a slight fever and infection. What worries me is that the vet did not see a clear sign of trauma to the claw. He said loss of nails can sometimes be a sign of cancer. I could not find any evidence of this online. Does anyone have any experience with this situation? I hope it is just an injury and nothing more sinister.