Polydactyl cats typically fall into one of two categories ... requiring immediate veterinary care. Any cat can develop an ingrown claw, however some may be more prone to the issue than others.

Milo's extra toes. His username, @milosixtoes, is a nod to his polydactylism—a condition where cats are born with extra digits. PetMD notes that polydactyl cats are sometimes called "Hemingway ...