First 30 Days With a New Kitten: A Health Checklist

The first month with a new kitten sets up health habits and baseline information that matter for years to come, and kittens' smaller size and faster metabolism mean some of this foundational work carries genuinely higher stakes than the equivalent puppy checklist.

Schedule the first vet visit within the first few days, even for an apparently healthy kitten, to establish a weight and health baseline, begin or continue vaccinations, and run a fecal test — intestinal parasites are extremely common in kittens regardless of source.

Start or continue the vaccination series on schedule, understanding that full protection isn't achieved until the series completes, generally around 16 weeks — this affects decisions about outdoor access and exposure to unknown-vaccination-status cats during this window.

Kitten-proof your home with particular attention to small swallowable objects (string, rubber bands, small toy parts) and any toxic plants, since kittens investigate everything with intense curiosity and their small size means smaller ingested amounts still matter significantly.

Establish a consistent feeding routine and appropriate kitten-specific food, and monitor eating closely during this period — appetite loss in kittens carries more risk than in adult cats, given how quickly they can develop complications from inadequate food intake.

Introduce the litter box properly and monitor litter box habits from day one, since changes here often provide some of the earliest signals of a developing health issue.

Watch for red flags requiring faster attention: any refusal to eat for more than half a day, persistent diarrhea or vomiting, lethargy, or difficulty breathing — kittens decline faster than adult cats and benefit from a lower threshold for concern.

What to do: Book the first vet visit early, stay on the vaccination schedule, kitten-proof deliberately, and watch appetite and litter box habits closely as your earliest warning signals.

For the complete vaccination timeline, here's the full schedule.