My cat has a hard lump on his neck that keeps growing in size. It has a small opening now. It’s not draining anything and is dark inside.

最佳回答：

Poor Murphy! This could be a parasite, an infection, or a tumor that has ruptured. Since it is getting larger, I would have your vet take a look at it. If it is a parasite, they will be able to remove the parasite for you. They will also be able to get him on some antibiotics if needed. If it looks like a tumor, your vet will be able to see whether or not it needs to be surgically removed or just continued to watch. I hope this helps.