How do you know if your kitten is heathly?

The only way you can be sure is by taking your cat to your vet. I take all my new pets to our vet for a good going over. The vet will also give you good tips on raising the pet, what food is the healthiest and all the shots they should have. Marcy Some vet clinics offer a free, new kitten check-up. Call around to see if there's one available in your area and/or surrounding area. Generally speaking, if the kitten is eating, drinking, using the litter box (going #1 & #2), gaining weight, being playful, and doesn't have any obvious ailments (runny/goopy eyes or nose, worms, etc.), the odds are that your kitten is healthy. However, it is always best to have your new kitten examined by a vet, vaccinated, dewormed, and spayed/neutered (at 5-6 months). And, I can't stress the spay/neuter part enough! It will eliminate a lot of future problems & headaches.... spraying, pregnancy, driving you crazy with the yowling/crying to get outside, etc.