1. Excessive Hiding
Cats love a good hiding spot, but if you notice your kitty is spending more time under the bed or in hard-to-reach places, it could signal that something’s wrong. “Owners often tell me they notice when their cat is ill if they’re usually social but have been spending more time in new hiding spots, or that they stop coming out at feeding time,” says Jake Zaidel, DVM, founder of Malta Animal Hospital in upstate New York and a member of the American Veterinary Medical Association. While excessive hiding is a general sign that something is off with your cat—not necessarily cancer—it’s still a good idea to see a vet, he says.