When Does Puppy Biting Stop?
A timeline for puppy mouthing and teething, why it gets worse before it gets better, and the signs you should stop waiting it out.
Puppy biting peaks between 10 and 16 weeks, drops sharply once adult teeth are in at around six months, and is mostly gone by seven or eight months.
That’s the timeline. The reason it feels endless is that the worst of it lands in the same weeks you’re most sleep-deprived.
The timeline
8-10 weeks. Constant mouthing, but the jaw is weak and the damage is limited. This is the best window to teach bite inhibition, because your puppy is learning how much pressure is acceptable while their bite can’t do harm.
10-16 weeks. The peak. Teething begins, the puppy is more confident and more coordinated, and the biting gets harder and more frequent. Most people who consider giving up on a puppy consider it here.
16-24 weeks. Adult teeth come through. Chewing stays intense but mouthing at people usually begins to fall away.
6-8 months. Adult teeth are in, mouthing at hands is largely finished. Chewing objects continues and will for life to some degree.
Adolescence (roughly 8-18 months). Some dogs have a resurgence of mouthy play. It’s usually brief, and it responds to the same rules as before.
Why it gets worse before it gets better
Three things stack in those middle weeks: teething discomfort, rising confidence, and most importantly accumulated overtiredness. A puppy who has been slightly short on sleep for a fortnight bites harder and recovers slower.
If your puppy’s biting is dramatically worse in the evening, that’s not a coincidence and it’s not a training problem. It’s the “witching hour”, and the answer is a nap, not a correction.
What speeds it up
- Enforced naps. The single highest-leverage change for most households.
- Something legal to chew, always within reach. Redirection has to be instant.
- Ending interactions when teeth meet skin, calmly and every single time.
- Rewarding calm. Drop a treat between the paws of a puppy lying quietly with a chew.
Full method in how to stop puppy biting.
What slows it down
Punishment, muzzle-grabbing, pinning, and shouting. These suppress mouthing in the moment while teaching your puppy that hands near their face are threatening, and they cost you the bite inhibition lesson that matters for the next fifteen years.
Rough hand play is the other one. If hands are a toy sometimes, they are a toy always.
When it isn’t normal puppy biting
Stop waiting it out and get help from a qualified behaviourist if you see:
- Stillness, freezing or a hard stare immediately before biting
- Growling that escalates around food, toys or resting places
- Bites that puncture rather than scratch
- Biting that reliably appears when your puppy is handled in one specific way
- Biting that comes out of nowhere in a previously soft-mouthed dog
Those are different problems, and generic puppy-biting advice can make them worse. A sudden change in a dog’s tolerance for handling also justifies a vet check: pain is a common and easily missed cause.