Kitten Health Milestones Every New Owner Should Track
Prepared by the Waggle editorial team. This article is educational, not a diagnosis or an individual veterinary review.
Photo by Furkan Aktaş on Pexels. Illustrative photo; not a patient or clinical diagnosis.
Kittens change quickly, and the first year is full of health milestones. Knowing what to expect helps you plan vet visits and spot problems early.
6 to 8 weeks: First vet visit
Your kitten's first exam covers weight, eyes, ears, teeth, heart and skin. Expect a first FVRCP vaccine (protecting against feline distemper and common respiratory viruses), a discussion of deworming and parasite prevention, and a test for feline leukemia and FIV where advised.
9 to 12 weeks: Booster vaccines
FVRCP doses are usually given every three to four weeks until 16 to 20 weeks of age. AAHA/AAFP classifies feline leukemia (FeLV) vaccination as core for cats under one year; test for FeLV before vaccination. Your vet will tailor the schedule.
12 to 16 weeks: Rabies and microchip
Rabies vaccination typically happens around this age, depending on local rules. If your kitten isn't microchipped yet, ask about it at this visit.
3 to 6 months: Teething and spay or neuter planning
Kittens lose baby teeth and start chewing. Many vets recommend spay or neuter around five to six months, and some suggest earlier. Ask what timing fits your kitten.
6 to 12 months: Adolescence
Energy peaks, and indoor kittens need play, scratching posts and climbing space. Keep litter boxes clean and in quiet spots. Ask your vet when to move from kitten food to adult food, usually around 12 months.
What to track
- Weight every two weeks
- Vaccine and deworming dates
- Appetite, stool and litter box habits
- Microchip number
A pet health vault keeps all of this in one place and ready for the next appointment. For in-person care, find a nearby veterinarian.
Call a vet promptly if
Your kitten stops eating, has vomiting or diarrhea, seems weak, has watery eyes with sneezing, or hides constantly. Kittens can decline fast.
FAQs
Do indoor kittens need vaccines?
Yes. Core vaccines are recommended for indoor cats too, since viruses can enter the home and cats may escape or visit boarding facilities.
Who can I ask about kitten behavior or small worries?
Chat with a licensed vet on Waggle Vet, any time. Check current access and eligibility in the app.
Related reading
- Puppy's First Year: A Month-by-Month Health Checklist
- Senior Dog Care: What Changes After Age 7
- What Belongs in Your Pet's Complete Health File
Waggle resources
Store pet documents with Waggle Vault
Find nearby US veterinary clinics
Sources and further guidance
- Merck Veterinary Manual: veterinary-reviewed pet owner resources
- AAHA/AAFP: core vaccines for pet cats
Sources checked October 13, 2026. These references inform the guidance; they do not mean the authors medically reviewed or endorsed this article.
Still have questions?
For non-emergency questions, explore Waggle Vet. Trouble breathing, collapse, suspected poisoning or other severe signs need immediate in-person emergency care—do not wait for an online chat.
Explore Waggle Vet
