Quick answer: Kittens teethe between 3 and 8 months of age: at around 6 weeks they grow 26 baby teeth, these start falling out at 3 to 4 months, and by 7 to 8 months they have all 30 permanent teeth. Mild gum bleeding, redness, reluctance to bite, and a slight drop in appetite are all normal during this time. Most baby teeth are swallowed by the cat, so owners rarely find them. Danger signs: retained baby teeth after 8 months, drooling for more than a week, complete refusal to eat, or facial swelling — see a veterinarian immediately.
Just when you thought your kitten was eating normally, you notice a few drops of blood in the food bowl and a poorer appetite? Don't panic — if your cat is between 3 and 8 months old, it's likely going through the milestone of teething! Cats, like human babies, lose their baby teeth, but cat owners almost never see the fallen teeth — where do they go? What are the consequences of retained baby teeth? PetChill breaks down the teething timeline, danger signs, and home care in one go — a must-read for Hong Kong families with kittens!
Cat Teeth Basics: 26 Baby Teeth, 30 Permanent Teeth
Kittens are born with no teeth at all! According to The Complete Book of Cat Breeding, baby teeth start to appear at around 6 weeks, and by 2 months they can bite dry food; cats have a total of 26 baby teeth, which gradually fall out from about 3 months and are replaced by 30 permanent teeth (16 upper, 14 lower). Adult cats have 4 more teeth than kittens because the premolars and molars only emerge as permanent teeth.
As carnivores, cats' dagger-like canines are used to grab and tear prey; the tiny incisors not only scrape meat off bones but also help clean the fur. Dental health directly affects eating and daily grooming, so care during teething should not be overlooked.
Teething Timeline: Gum Bleeding and Loss of Appetite Are Normal from 3 to 8 Months
Based on the timelines in The Complete Book of Cat Breeding and The Cat Encyclopedia of Family Medicine:
| Stage | Changes |
|---|---|
| Birth to 6 weeks | No teeth, purely nursing |
| 6 weeks to 2 months | Baby teeth emerge one by one, start eating dry food; mother cat refuses to nurse due to pain from baby teeth, leading to natural weaning |
| 3 to 4 months | Teething begins, baby teeth fall out and permanent teeth emerge |
| 7 to 8 months | Teething complete, all 30 permanent teeth present |
During teething, there may be mild gum bleeding, slight gum redness, reluctance to bite, or mild loss of appetite — these are normal physiological signs and generally need no special treatment; just keep an eye on your kitten's eating during this time.
Why Do We Never See Fallen Kitten Teeth?
The most curious fact: cats usually swallow their fallen baby teeth directly, so owners almost never "find" them. Swallowing baby teeth is generally harmless, so don't worry; if you're still concerned, ask your veterinarian to check the mouth during the next vaccination or health check. Some kittens drool a little more and occasionally have blood stains during teething — these are signs of loose baby teeth.
Danger Signs: 4 Situations That Require a Vet Visit
- Retained baby teeth (double teeth): The permanent tooth has emerged but the baby tooth has not fallen out, and the two teeth sit side by side, crowding the permanent tooth's growth direction. If a baby tooth is still retained after 8 months, a veterinarian must extract it.
- Severe gum redness, bad breath, drooling for more than a week: Possible gum inflammation.
- Complete refusal to eat, dropping food halfway, chewing on one side: Signs of tooth pain.
- Facial swelling, loose or broken teeth: Trauma or infection, seek medical attention immediately.
Medical content is for reference only and cannot replace professional veterinary diagnosis. If you have any concerns, please seek veterinary care as soon as possible.
3 Home Care Tips During Teething
- Diet adjustment: If your kitten won't bite during teething, temporarily switch to soft canned food or soften dry food with warm water, then return to normal diet after the transition.
- Safe chewing: Provide kitten-specific chew toys or dental treats, and keep shoes, strings, and rubber bands out of reach — teething is the peak time for accidental ingestion of foreign objects.
- Build a checking habit: Gently lift the lips every week to check for double teeth and abnormal gum color. Establish mouth-handling habits from a young age so that brushing later will be easier.
Teething is the golden period to establish daily care habits: for vaccination scheduling, see the Complete Cat Vaccination Guide; for diet transitions and nutritional ratios, the Complete Cat Nutrition Guide has a full breakdown; and touching the lips and checking teeth daily is actually desensitization to sensitive areas as described in the Complete Cat Handling Training Guide — done from a young age, future dental checks and nail trims will be much easier.
Retained Teeth: The Only Situation That Needs Intervention
The book puts it plainly: only in very rare cases does a baby tooth not fall out and remain next to the new tooth — this is called a retained tooth (double row of teeth), and it must be extracted.
How to spot it: During the teething period (4-7 months), occasionally lift your cat's lips. If you see two teeth side by side in the same position (a loose old tooth plus a new tooth), that's a retained tooth. If left untreated, retained teeth can:
- Cause the permanent tooth to grow crooked
- Trap food debris between teeth, accelerating tartar and periodontal disease
Extraction at the vet is a minor procedure, so don't be afraid.
! Teething care
How to Check Your Cat's Mouth During Teething
The teething period (4-7 months) is the best time to start checking the mouth — cats are still young and adapt quickly. Once a week:
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When your cat is relaxed (e.g., after a meal), lift the lips and start from the canines.
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Look for three things: any double teeth (retained teeth), gum redness, and any bad odor.
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After each check, give a treat so the cat associates "opening the mouth" with something good.
Once this habit is established, brushing and checking for oral problems will be much easier when the cat is older. Oral problems are not just for senior cats — the book notes that dental problems are very common in cats. For oral care in adult cats, see the Complete Guide to Cat Stomatitis to learn about the signs and treatment of gum inflammation.
Four Steps to Start Brushing (Start After Teething)
The book recommends getting kittens used to brushing from a young age, ideally daily. Here's how to start in practice:
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Week 1: Just lift the lip for one second and give a treat — build "open mouth = good thing".
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Week 2: Wrap gauze around your finger, wipe the outside of the front teeth twice, give a treat.
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Week 3: Wipe the back teeth, add cat toothpaste (human toothpaste is not allowed).
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From week 4: Transition to a small cat toothbrush, starting with 30 seconds.
The key is to go slowly. If you make it unpleasant, you won't be able to brush for the next ten years. Oral health starts young, and the risk of periodontal disease and stomatitis in adulthood will be much lower — for signs and treatment of oral problems in adult cats, see the Complete Guide to Cat Stomatitis.
Teething Toys and Treats Checklist
What can be chewed and what can't:
- ✅ Large meat bones / freeze-dried chicken necks (hard foods recognized by the book to help teething) — supervise the first time you give them.
- ✅ Chew toys (soft rubber, hemp rope) — put rope toys away after play.
- ✅ Frozen wet towel rolls — cold soothes itchy gums.
- ❌ Electrical cords, earphone wires (electrocution risk)
- ❌ Hard objects smaller than a mouthful (dangerous if swallowed)
- ❌ Your fingers — letting them bite hands teaches them to bite people (see How to Stop Kitten Biting)
Another free and good option: soak a clean old towel in water and freeze it. The hardness and coolness of the frozen towel are well received by many kittens.
Teething is the most silent event of kittenhood — you may never find a single tooth. But as long as your kitten eats, plays, and gains weight normally, teething is going well. The oral check habit six months from now starts today.
After teething is complete, your cat officially enters the "big cat teeth" era. These 30 permanent teeth will stay with them for over a decade, relying on the oral care habits you establish during kittenhood: check gum color weekly, brush daily if possible, and have your veterinarian check the mouth at the annual health check. Getting your cat used to having its mouth touched now will make future dental cleanings, checkups, and medication much easier — these are things that the more you do during kittenhood, the easier they become later, and the rewards are measured in years; you'll feel the difference from the first dental cleaning.
How to Tell "Teething Discomfort" from "Oral Disease"
| Situation | Teething (normal) | Oral disease (see a vet) |
|---|---|---|
| Appetite | Slightly reduced, still eats wet food | Complete refusal to eat |
| Drooling | None or very little | Persistent drooling |
| Breath | Mild | Obvious foul odor |
| Gums | Slightly red at teething sites | Widespread redness, swelling, bleeding |
| Duration | Resolves naturally within 4-7 months | Lasts more than a week at any age |
Kitten Teeth Basics
- 26 baby teeth, 30 permanent teeth (the extra ones are the molars at the back)
- Teething order generally starts with incisors, then canines and molars
- The Complete Book of Cat Breeding adds: the molars at the back are made up of the first permanent teeth to emerge; hard food makes teething easier
In line with growth progress, the teething period generally overlaps with the 4-6 month stage in the Kitten Age Chart; this is also the final stage of socialization, so the habit of having the mouth touched should be established now (Kitten Socialization Guide). For weight during teething, see the Kitten Weight Chart.
Hong Kong Context
- Hot and humid weather: During teething, there are tiny wounds in the mouth, and food debris can easily breed bacteria, so wash water and food bowls daily.
- Freeze-dried chews: Many shops in Hong Kong sell freeze-dried chicken necks and freeze-dried small fish. Choose the right size for kittens and supervise the first time you give them.
Key Summary
- Teething timeline: 26 baby teeth at 6 weeks → start falling out at 3 to 4 months → all 30 permanent teeth by 7 to 8 months
- Mild gum bleeding, redness, reluctance to bite, and a slight drop in appetite are normal and usually resolve on their own
- Why can't you find baby teeth? Cats usually swallow fallen baby teeth directly, which is generally harmless
- The most common problem is retained baby teeth (double teeth), which can crowd permanent teeth; after 8 months, see a veterinarian for extraction
- Teething is the peak time for accidental ingestion — put away shoelaces, strings, and rubber bands, and provide dedicated chew toys
- ⚠️ Complete refusal to eat, drooling for more than a week, facial swelling, or broken teeth — see a veterinarian immediately
PetChill's Reminder
Teething is an important milestone in every kitten's growth: know the timeline, watch for bleeding and appetite warning signs, and address retained teeth early, and you can help your kitten grow a strong set of permanent teeth. For more cat growth knowledge, stay tuned to PetChill's latest articles!
(References: The Complete Book of Cat Breeding, The Cat Encyclopedia of Family Medicine — PetChill Book OCR Library)