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My kitten is teething — what's normal and what should I check?

Teething runs from about 10 weeks to 6 months, ending with all 30 adult teeth by 6-7 months. Drooling, chewing urges, mild fussiness at meals, and odd breath are normal — two teeth in one socket is the thing that needs a vet.Fact

VCA's rule: 'no two teeth should be in the same socket at the same time' — a retained baby tooth beside its adult replacement needs prompt veterinary attention.

Applies to: Kittens ~3 weeks to 8 months. Adult cats 'teething' don't exist — mouth pain in an adult is a dental-disease sign for the vet.

Steps

The timelineFact
  • ~3 weeks: baby teeth start erupting; complete by 6-8 weeks
  • ~10 weeks-6 months: baby teeth fall out, adult teeth replace them
  • 6-7 months: all 30 adult teeth in
  • Finding tiny shed teeth on the floor (or never finding them — kittens swallow them) is normal
Normal teething, managedFact
  • Drooling, mild appetite dips, irritability, chew-everything urges, funny breath
  • Offer safe chew outlets: soft cat toys — never hands, cords, or string
  • Weekly mouth peek until 7-8 months: lift the lip, scan gum line
  • Great window to start the tooth-brushing ramp (see related)
See the vet whenFact
  • A baby tooth persists next to the erupting adult tooth (double row / two-in-one-socket)
  • The kitten stops eating, not just hesitates
  • Swelling, bleeding, or a broken tooth

Normal vs keep-watching

Normal: A chewy, slightly drooly kitten that still eats, plays, and gains weight through the teething months.

Keep watching: Weekly gum-line check until 7-8 months; note any tooth that seems doubled or a bite that looks off.

When to contact a vet. A retained (persistent) baby tooth, refusal to eat, facial swelling, or a kitten in obvious mouth pain needs your veterinarian — retained teeth are fixed by extraction, not waiting.

What changes this answer

  • Age (which phase of the timeline)
  • Breed with crowded jaws (vet may check more often)
  • Already-adult cat (mouth pain = dental disease, different page)

Common mistakes

  • Letting the kitten chew fingers ('it's cute') — it isn't at 7 months
  • String/ribbon as chew toys — swallowing hazard
  • Skipping the weekly mouth check
  • Waiting out a double row of teeth

Sources

Real questions cat owners ask

  • Do kittens lose their teeth like children do?
  • Why does my teething kitten have bad breath?
  • When should I start brushing my kitten's teeth?
Birth date in your Passport profile places your kitten on the teething timeline automatically. Set up your Cat Passport.

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