Last night I was petting my rabbit and I've noticed a large lump on his jaw, right under his R eye. He is eating fine, I can touch it and he doesnt seem bothered.
I can add he seems to be obsessed the last week with chewing the carpet, no matter that as soon as he does he's sent back into his cage for the rest of his day. When we let him back out he heads straight for it again.(yes, he is an indoor rabbit).
What could cause this lump and should he be brought immediately to the vet or is there something I can look into myself? I look foward to your answer. thank you

