How to Stop Puppy Biting and Nipping: Why Puppies Bite and When It Stops

Puppy biting and nipping are normal, and most puppies grow out of it somewhere between three and seven months as teething ends and they learn to be gentle. The way to stop puppy biting is to keep hands still, redirect your puppy onto a toy, take a short calm break if the teeth keep coming, and reward the moments your puppy chooses to be gentle. Punishment, squealing and rough hand games make it worse.

Why do puppies bite?

It's normal for puppies to mouth and bite: they explore the world with their mouths. Mouthing, nipping and grabbing are natural behaviours while a young dog works out how things feel, taste and move, and puppies find it rewarding, especially while exploring and teething. Puppy teeth are needle sharp, so even gentle play can damage skin and clothing. In the litter, puppies also learn bite inhibition: when one bites a littermate too hard, the play stops, and over time that teaches a softer mouth. When a new puppy comes home, you become the new playmate, so puppy bite inhibition has to carry on with you. Your job is to teach your puppy that people are not chew toys and that biting makes the fun stop.

The common reasons a puppy bites:

Dogs Trust lists over-excitement, play, stress or fear, frustration, pain or illness, learned habit and attention seeking alongside teething. Battersea adds trying to avoid something unfamiliar, such as being handled or groomed. Puppies that were hand-reared, and so missed out on play with littermates, often find it harder to learn a gentle mouth. Puppies often nip more when they are excited, tired or frustrated, so the cause matters as much as the cure.

When do puppies stop biting?

There is no single age. UK charities give slightly different ranges, which mostly reflects the fact that puppies, and breeds, develop at different speeds:

So when do puppies stop biting? For most, the worst of it is over by about six or seven months, and the pattern you should see is a steady decrease. If biting becomes more frequent or harder rather than less, your puppy needs more help, not more time. Puppy behaviour does not switch off on a birthday; it fades as your puppy learns what works.

What age does puppy biting stop for working breeds?

Working-breed puppies tend to be more energetic and can bite harder, and big breeds may keep mouthing for longer. If you are still comparing dog breeds, it is worth knowing that a lively working or large breed usually means a longer, more hands-on puppy biting stage.

The puppy biting stage and teething

Teething overlaps with the peak of the biting stage. Dogs Trust explains that baby teeth appear before about four weeks, begin falling out around 12 weeks, and adult teeth have usually all come through by about seven months. Battersea notes that adult teeth start arriving at around 16 weeks, when puppies may mouth more to soothe sore gums. Our guide to puppy teething covers what is normal and how to ease sore gums.

How to stop puppy biting and nipping: a step-by-step plan

This plan combines the approach used by Blue Cross, Dogs Trust, Battersea and the Royal Kennel Club. Everyone in the household needs to follow the same rules when stopping your puppy biting, because consistency is what makes it work.

1. Get ahead of it. Keep a toy within reach in every room and offer it before your puppy starts mouthing, for example when you sit down or come home.
2. Redirect onto a toy. Mouthing should always be redirected onto a suitable toy. Keep the toy moving so it looks more fun than your hand or your sleeve.
3. If teeth touch skin, stop moving and wait. If your puppy grabs your hands or feet, keep them still rather than snatching them away, which turns it into a game. Turn your face away and fold your arms.
4. Pause the fun. If your puppy keeps biting, stand up and move away for a moment, using a door or stair gate if you need to.
5. Reward calm. Wait for your puppy to settle, then praise your puppy for stopping. As soon as your puppy is calm, bring the fun back: restart the game with a toy, scatter a few treats, or give gentle fuss. Reward four paws on the floor and chewing on the right things.
6. Keep track of triggers. Note when biting happens, such as after a walk, at bedtime or when visitors arrive, and plan around those moments.

With consistent training, most puppies improve over a few weeks. Older dogs may take longer, particularly past six months, because the habit is more established.

Use toys and chews to give teeth a job

A puppy who wants to bite needs something legal to bite, and toys and chews are how you teach your puppy where their teeth belong. Tug games with large, soft toys are useful because they keep hands away from teeth. Rope toys, food-stuffed rubber toys, chews and teething rings all give your puppy an outlet. Rotating three or four toys keeps them interesting, and praising your puppy for chewing a toy tells them they have got it right. Our guide to puppy toys explains which types suit which stage.

A long-lasting chew is also a good way to help a puppy settle when they need to wind down.

Calm breaks for hard biting

If redirection fails and your puppy is biting hard, a very short break helps them learn that biting ends the attention:

• Clip a lightweight house lead to your puppy's collar before the usual biting times.
• When the biting starts, calmly pick up the lead and guide your puppy to a nearby room or behind a stair gate.
• Keep the break to no more than 30 seconds, or until your puppy calms, then carry on as normal.
• Repeat as often as needed. Stay calm and quiet throughout.
• Do not use the crate for time-outs. It should stay a place where your puppy relaxes.

If you watch on a camera during a break and your puppy falls asleep, leave them be. They were probably just overtired.

Reward the behaviour you want

Rewards are what turn "stop biting" into "do this instead", and they encourage your puppy to repeat the behaviour you like. Have treats ready so you can ask for something your puppy already knows, such as sit. In an emergency, scattering a handful of treats on the floor changes their focus straight away. The Royal Kennel Club suggests taking treats out of your puppy's daily food allowance so they do not overeat.

What not to do when your puppy bites

When you play with your puppy, use a toy so their mouth stays away from hands or clothes. Put tempting items away for a while too: loose clothing, fluffy slippers and dressing gown cords are favourite targets.

Overtired puppy biting, zoomies and hunger

A puppy that is suddenly biting harder and faster is often tired, not naughty. Puppies need a lot of sleep: Dogs Trust says 18 to 20 hours a day. An overtired puppy often gets extra energy, zoomies and more mouthing, which is the opposite of what most people expect. Blue Cross notes that tired or hungry puppies may bite more, and recommends several small meals a day and scheduled quiet time.

What helps:

• Build naps into the day and give your puppy a quiet place to sleep.
• Offer a chew or a stuffed food toy when you can see your puppy is getting wound up.
• Give a mix of physical and mental exercise, without overdoing it. A bored puppy bites more, but so does an exhausted one.

Puppy biting and children

Children are often on the receiving end because they move quickly, squeal and tend to play with their hands. Running, shrieking or rough play can over-excite a puppy and set off mouthing.

A checklist for families:

• Always supervise children and the puppy together.
• When you cannot supervise, separate them with a stair gate or a pen.
• Teach children to move calmly, speak quietly and offer a toy, not their hands.
• Ask children not to run or shout around the puppy, and avoid chasing games.
• Keep play short and structured, and end it with a break if the puppy starts mouthing.
• Wellington boots can protect feet and ankles while you redirect a puppy that targets feet.

Biting during handling and grooming

Some puppies mouth when they are brushed, picked up or have a lead clipped on, often because the experience is new. Keep grooming short, give your puppy a small stuffed toy to hold, and choose a time when they are quieter, such as just before a nap. A second person can keep the puppy busy with a toy or treats while you groom. Getting your puppy used to gentle handling is part of good puppy socialisation.

When puppy biting is a concern

Normal puppy mouthing is soft-ish, playful and gets better week by week. Dogs Trust explains that biting from fear is different: it usually involves more pressure, repeated grabbing, and signs such as growling or a tense body.

Watch for these warning signs:

• Biting that starts suddenly, or suddenly gets worse
• Biting that does not improve, or comes back after it had settled
• Biting that causes injury
• Biting that seems linked to fear or frustration rather than play
• Mouthing that is becoming more frequent or more intense instead of less

Some dogs go through a second wobble in adolescence, when training can seem to unravel. Our guide to adolescent dogs explains what is happening and how to keep things on track.

When to see a vet or a qualified behaviourist

Start with your vet if biting starts suddenly or increases, because pain or illness can be behind it. The RSPCA advises asking your vet first; if they find no medical cause, they can refer you to a behaviour expert.

Choose that expert carefully. The RSPCA warns that outdated advice or methods can make problems worse, and points owners to clinical animal behaviourists and veterinary behaviourists registered with the Animal Behaviour and Training Council (ABTC), which sets standards of professional competence. For everyday training help, the Royal Kennel Club points to its Accredited Instructors and local dog training clubs, which are a good place to find puppy classes.

Free advice is also available:

While you wait for help, keep a simple daily diary of your puppy's routine, when the biting happens and what was going on at the time. It gives the professional a clear picture straight away.

If a bite causes a serious injury, get medical help for the person first, then contact your vet and a behaviourist.

Frequently asked questions

Is it normal for a puppy to bite and nip?

Yes. Mouthing and biting are normal puppy behaviours that most puppies grow out of. The aim is to teach a gentle mouth and give your puppy better things to bite.

How long does it take to stop a puppy biting?

With consistent training, most puppies improve over a few weeks. Older puppies, past six months, may take longer because the habit is more established.

Why is my puppy biting so much?

The usual culprits are over-excitement, tiredness, hunger, boredom and teething. Look at when the biting happens: a puppy that bites most in the evening often needs a nap or a meal, not more play.

Should I yelp when my puppy bites?

No. Current UK charity advice is to avoid squealing or yelping, because high-pitched noises tend to excite puppies and can make biting worse. Go still, turn away and redirect to a toy instead.

Why does my puppy bite my feet and trousers?

Loose, flapping clothing attracts puppies, and quick movement turns feet into a game. Stop moving, wear thicker clothing or wellies for a while, and redirect onto a toy.

Can I put my puppy in the crate when they bite?

Blue Cross advises against it. Use a nearby room or a stair gate for short breaks instead, so the crate stays a calm, positive place.

Should I tap my puppy on the nose or hold their mouth shut?

No. Physical punishment can frighten your puppy, damage your relationship and increase fear and frustration. Redirection, calm breaks and rewards work better and are kinder.