25/06/2026
đś Mouthing & Biting
One of the most common concerns puppy owners have is mouthing and biting. While it can be frustrating (and painful), it's important to understand that mouthing is a normal part of canine development.
Puppies use their mouths to explore the world, interact with their environment, play with others, and learn social skills. In fact, a puppy's mouth is one of its primary tools for gathering information about the world around them.
The issue isn't that puppies mouthâitâs what they learn from it.
From a behavioural science perspective, dogs repeat behaviours that are reinforced. Reinforcement simply means a behaviour results in an outcome the dog finds rewarding. If mouthing leads to attention, play, movement, laughter, physical interaction, or access to something desirable, the behaviour is likely to increase over time.
This is why many owners unintentionally strengthen mouthing without realising it. Pushing a puppy away, waving your hands, pulling clothing back, talking to them, or engaging in a tug-of-war style interaction can all become part of the reinforcement history that maintains the behaviour.
Neuroscience also plays a role. Young puppies have immature impulse control systems and are still developing the neural pathways responsible for emotional regulation, frustration tolerance, and self-control. Just like children, puppies require guidance and repetition to learn appropriate ways of interacting with the world.
Mouthing commonly occurs during:
⢠Play
⢠Excitement
⢠Attention-seeking
⢠Exploration
⢠Teething
⢠Frustration
⢠Overstimulation
Rather than focusing solely on stopping the behaviour, we should focus on teaching an alternative.
â Redirect onto appropriate toys and chews
â Reward calm interaction
â Teach impulse control
â Ensure puppies are getting adequate rest
â Consistently reinforce appropriate play
Mouthing is normal.
What matters is whether the puppy learns that using their mouth on people worksâor whether they learn better ways to engage with the world.