Why Is My Puppy Biting Me? Understanding Puppy Biting and What You Can Do About It
If you have recently brought home a puppy and suddenly feel like you are living with a tiny shark, you are not alone.

“Why is my puppy biting me all the time?”
The good news is that in most cases, puppy biting is completely normal. However, that does not mean it should simply be ignored. Understanding why your puppy is biting is the first step in teaching them more appropriate ways to interact with the world around them.
Why Do Puppies Bite?
Puppies use their mouths to explore the world, much like human babies use their hands. Biting, chewing and mouthing are natural puppy behaviours, but there are several reasons why it may feel excessive.
1. Teething Pain
Just like babies, puppies go through teething. This can make their gums sore and uncomfortable, causing them to chew and bite more often for relief.
You may notice your puppy becoming more “mouthy” between 3–6 months of age.
What can help?
- Puppy-safe chew toys
- Frozen carrots (under supervision)
- Frozen puppy teething toys
- Appropriate long-lasting chews
Giving your puppy legal outlets for chewing can make a huge difference.
2. Overstimulation (“The Crazy Hour”)
Have you ever noticed your puppy suddenly becoming wild in the evening? Running around, grabbing clothes, jumping and biting hands?
This is often not bad behaviour, it is overstimulation.
Many puppies become bitey when they are:
- Over tired
- Over excited
- Frustrated
- Mentally overloaded
Sometimes owners accidentally make this worse by continuing play when the puppy actually needs rest.
A tired puppy is not always a calm puppy.
In fact, overtired puppies often behave like overexcited toddlers.
3. Play Behaviour
Puppies naturally play with their mouths. When playing with littermates, they learn important social skills, including bite inhibition (learning how hard is too hard).
The problem is that human skin is much more sensitive than another puppy’s fur.
If your puppy is constantly grabbing hands, sleeves or ankles, they may simply think this is part of the game.
4. Lack of Sleep
This surprises many owners, but puppies need a huge amount of sleep, often between 16–20 hours a day.
An overtired puppy often becomes:
- More bitey
- More hyper
- Less responsive
- Easily frustrated
Sometimes improving a puppy’s sleep routine can reduce biting dramatically.

What Should You Avoid?
Many owners understandably become frustrated and try things they have seen online or been told by others.
However, certain methods can accidentally make biting worse.
Avoid:
❌ Shouting at your puppy
❌ Holding their mouth shut
❌ Punishment-based methods
❌ Rough play that encourages biting
❌ Constantly pushing them away with your hands
Why?
Because attention, even negative attention, can sometimes reinforce the behaviour. In some puppies, punishment can also create frustration or anxiety.
What Actually Helps?
Redirect to Something Appropriate
If your puppy starts biting your hands or clothes, calmly redirect them onto a toy or suitable chew.
The goal is not to stop chewing completely, it is to teach what is appropriate to chew.
Build Calmness Into the Day
Many owners unintentionally keep puppies constantly stimulated.
Instead, try balancing:
- Short training sessions
- Mental enrichment
- Calm rest periods
- Structured play
Sometimes less is more.
Reward Calm Behaviour
Owners often focus attention on unwanted behaviour but forget to reward the good moments.
If your puppy settles calmly, lies down quietly or chooses a toy instead of your hands, acknowledge it.
Calm behaviour deserves reinforcement too.
Manage the Environment
If your puppy repeatedly grabs clothing, avoid loose sleeves or trailing dressing gowns during this stage.
Management is not failure, it is smart training.
When Is Puppy Biting NOT Normal?
While puppy biting is usually normal, there are times where extra support may be needed.
You may benefit from professional guidance if:
- The biting is escalating significantly
- Your puppy seems unusually frustrated
- There is growling around handling or resources
- Children are becoming frightened
- You feel overwhelmed or worried
Early training can prevent small issues becoming bigger habits later on.
Final Thoughts
If your puppy is biting you, take reassurance in knowing that you are not alone, and in most cases, it does improve with the right guidance and consistency.
Remember: your puppy is not trying to be naughty or dominant.
They are learning.
The key is helping them understand what behaviours work, while giving them appropriate outlets for chewing, play and rest.
With patience, structure and the right training approach, that tiny shark phase does pass!
If you are struggling with puppy biting or other puppy behaviours, feel free to get in touch. Early guidance can make life much easier for both you and your puppy.










