Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Phoebe. If she isn’t limping, it isn’t bleeding excessively, there is no sign of infection, and she’s acting normally, no you don’t need to rush her into a vet. I would have it checked out by a vet, but it’s not an emergency. If she is showing any of the things I mentioned above, then yes I would rush her into a vet. Keep her from licking at it, and keep the area clean and dry until she sees the vet. I hope this helps!