The one rule

Never leave a baby and a pet alone together — not for a second, not even a pet you trust completely. Everything else on this site is secondary to this.

Body language

They warn you
long before anything happens.

Dogs almost always signal discomfort well in advance, and the signals are quiet enough to miss if nobody has told you what to look for. Tell the tool below what your dog is actually doing and it will tell you what that means, how urgent it is, and what to do in the next five minutes.

A dog with its head turned away from the camera
Turning away is a sentence, not a mood

Pick the thing you have actually noticed — the list is grouped by where you would see it, not by how serious it is. You will get what your pet is saying, what to do now, and the one thing not to do.

Fine · keep it that way Early warning · answer it today Stop · separate and call someone
See every signal at a glance
What you seeReadingWhere you would see it
Guarding food, a toy, a spot or a personStop todayAround the baby
Growling, snarling or showing teethStop todayAround the baby
Snapping or air-biting, even with no contactStop todayAround the baby
Any contact with teeth, even without a markStop todayAround the baby
Sleeping in the cot, the pram or the moses basketStop todayCats
Swatting, hissing or growling at the babyStop todayCats
A dog that used to leave the room and has stoppedStop todayOver days and weeks
Something feels wrong and you cannot say whyStop todayOver days and weeks
Suddenly going still, or freezing mid-movementStop todayWhole body
Stiffening, or standing over the baby, the pram or the basketStop todayWhole body
Barking at the cryingEarly warningAround the baby
Following the baby everywhere and never settlingEarly warningAround the baby
Hiding far more than usual, or giving up shared roomsEarly warningCats
Flattened ears, a flicking tail, skin rippling along the backEarly warningCats
Toileting outside the trayEarly warningCats
Over-grooming to the point of bald patchesEarly warningCats
Eating noticeably less, or not at allEarly warningCats
“Whale eye” — head turned away, eyes fixed, whites showingEarly warningEyes and head
Turning the head or the whole body awayEarly warningEyes and head
Ears back, body low, tail tuckedEarly warningEyes and head
Lip licking when there is no foodEarly warningFace and mouth
Yawning when the dog isn’t tiredEarly warningFace and mouth
Panting with no heat and no exerciseEarly warningFace and mouth
Turning away from food it normally wantsEarly warningFace and mouth
Shaking off when the dog isn’t wetEarly warningWhole body
Sudden floor-sniffing, scratching or a big stretch mid-situationEarly warningWhole body
A short sniff, then moving off on its ownThis one is fineAround the baby
Soft eyes, loose body, a tail that moves the hipsThis one is fineEyes and head
Sleeping somewhere new since the baby arrivedThis one is fineOver days and weeks
Walking out of the room when the baby criesThis one is fineWhole body

What escalation actually looks like

Dogs work up a ladder, and they start at the bottom. Almost every “bite out of nowhere” is a dog that climbed the first six rungs in front of somebody who had not been told the rungs existed.

  1. Blinking, lip licking, yawningQuiet. Almost nobody notices these.
  2. Turning the head awayStill polite. Still easy to miss.
  3. Turning the body away, sitting, pawingNow it is asking twice.
  4. Walking awayThe dog solving it on its own. Protect this rung above all.
  5. Creeping, ears back, tail lowFrightened, and running out of polite options.
  6. Standing stiff, staringThe last silent rung.
  7. GrowlingThe last warning — and the one people punish.
    This is the rung people punish. Punish a growl and the dog does not stop feeling what it felt — it learns that every rung below this one failed. The next time, it starts here.
  8. Snapping, air-bitingA bite the dog chose to pull.
  9. BitingNo warning left to give.

Thank the growl. Increase the distance. Then get help with whatever put the dog on the ladder in the first place.

If you have a cat as well

Cats do not use the same ladder.

Dogs escalate through warnings you can learn to read. Cats mostly withdraw — and the withdrawal is the warning. A cat that has stopped using a room, stopped eating, or started toileting outside the tray has been telling you for days.

The cat risk that supervision cannot cover is different too: cots are warm, soft and raised, which makes them an excellent cat bed, and cats use them while you are asleep. That is a cot net and a shut door, not a rule. Toxoplasmosis in pregnancy is a litter-tray question for your midwife — someone else changes the tray daily where possible, gloves and thorough handwashing where not.

The seven cat signals are in the tool above, under Cats.

Getting help

When to stop reading websites and call someone.

If your dog has growled, stiffened, guarded or shown teeth around the baby — or if something simply feels wrong — that is the point to bring in a professional, not to research harder.

Start with your vet: behaviour change is very often medical. Then ask for a referral to an accredited, reward-based behaviourist. Avoid anyone selling dominance, alpha rolls, prong or shock collars — aversives suppress the warnings you most need to keep.

Until you have seen someone, manage it physically: gates or crates, never in the same space unsupervised, no exceptions because you are tired.

A dog resting quietly at home

If you are thinking about rehoming

If you have done all of that — the vet, the behaviourist, the gates, and practical help like a walker or daycare to protect the dog’s routine — and it is still not safe, this is the part of the subject nobody links to. It happens, it is far more common than people admit publicly, and it does not make you a bad owner.

If rehoming is the right call

  • Be completely honest about the history. Concealing a bite risks the next family and the dog
  • Go through a reputable breed rescue or shelter, never a free-to-good-home advert
  • If you bought from a breeder, contact them — good ones take their dogs back
  • Ask about an adult-only household. It may be an easy placement, not a tragedy

What we will not tell you

  • That you must keep a dog that has injured your child
  • That rehoming a dog you cannot safely manage is a moral failure
  • That love, effort or the right training video always fixes it
  • That any household can be made safe. Most can. Not all can

Questions people ask us

My dog has never shown any aggression. Do I really need all this?

Most serious injuries to babies involve a familiar family dog with no bite history. A clean record is genuinely reassuring about temperament — it is not a substitute for management, because the situation your dog is about to face is one it has never encountered.

Is it fine if my dog licks the baby?

We would discourage it. Mouths carry bacteria and a newborn’s immune system is immature — and behaviourally it puts a dog’s face against a baby’s face, the exact position you least want to become normal.

Should I let my dog sniff the baby to get used to them?

Let the dog approach and withdraw on its own terms, from a distance, on a loose lead. Never hold the baby towards the dog or bring the dog to the baby. One gives the dog a choice; the other removes it.