Why is my puppy drooling?
Some drooling is normal in puppies, especially around teething, excitement over food, or car travel, and it usually settles on its own. Sudden, heavy, or one-sided drooling, or drooling alongside other symptoms, is different and is worth a vet visit rather than waiting to see if it passes.
Usually not urgent
This is common and often manageable at home — but see a vet if it persists, gets worse, or comes with other changes.
The common, usually harmless causes
Teething is one of the biggest reasons young puppies drool more than adult dogs, typically starting around three to four months old as adult teeth begin coming through, and it usually eases once teething is complete. Chewing on appropriate toys helps manage the discomfort behind it, and you may notice small spots of blood on a chew toy during this stage, which is normal as baby teeth come loose.
Excitement and anticipation, particularly around food, is another common and completely normal cause — plenty of puppies drool visibly at the sight or smell of a treat, which is simply an exaggerated version of a reflex every dog has. Some breeds, particularly those with loose jowls, also drool more than others as a simple feature of their anatomy rather than anything to do with how they feel.
Motion sickness and travel
Car travel is a frequent trigger for drooling in puppies, often alongside restlessness, panting or being sick, and it is genuinely common in young dogs whose balance systems have not yet adjusted to motion the way an adult dog's has. It tends to improve naturally as a puppy grows and gets more used to the sensation of travelling.
Most puppies improve with short, positive car journeys taken regularly, though a puppy who is consistently distressed by travel is worth discussing with your vet, since there are ways to make the experience easier for a genuinely anxious traveller, including timing journeys away from meals and building up gradually from very short trips.
When drooling points to something else
Sudden, heavy drooling that is new and not linked to teething, food or travel can be a sign of nausea, a mouth or dental problem, something stuck in the mouth or throat, or in more serious cases, exposure to something toxic. Drooling from only one side of the mouth is also worth noting specifically, as it can point to a localised dental or mouth issue rather than a general one.
Overheating is another cause worth ruling out, particularly in warm weather or after exercise — heavy drooling alongside excessive panting, lethargy or bright red gums needs prompt attention rather than being put down to normal puppy behaviour, and flat-faced breeds are especially at risk of overheating quickly.
What a vet visit usually involves
A vet will typically start by looking inside your puppy's mouth for anything obviously stuck, a dental problem, or signs of injury, and will ask about when the drooling started, what else has changed, and whether your puppy has had access to anything they should not have chewed or eaten.
Depending on what they find, further checks might follow, but in a great many cases a straightforward look in the mouth together with a description of what you have noticed is enough to work out whether this is ordinary puppy drooling or something that needs treating.
When to see a vet
Contact your vet promptly if drooling is sudden and heavy, comes with vomiting, lethargy, pawing at the mouth, or difficulty swallowing, or if you suspect your puppy may have chewed something they should not have. These are not symptoms to manage at home.
If drooling is mild, linked to an obvious cause like teething or excitement, and your puppy is otherwise bright, eating and behaving normally, it is reasonable to keep an eye on things rather than rushing straight to the vet — but any doubt is worth a call, and it is always better to check than to wait and hope it settles.
Common questions
- Is it normal for puppies to drool more than adult dogs?
- Yes, to some extent — teething is a major cause of extra drooling in young puppies, and excitement or anticipation around food is also very common. It usually settles down once teething is complete and generally is not something to worry about on its own.
- How do I know if my puppy's drooling is serious?
- Watch for sudden onset, heavy amounts, drooling from only one side of the mouth, or drooling alongside vomiting, lethargy or pawing at the mouth. Any of these, especially together, is a reason to contact your vet rather than wait and see.
- Can travel sickness cause puppy drooling?
- Yes, it is a common cause, often alongside restlessness, panting or being sick in the car. Most puppies improve with short, positive journeys over time, but a puppy who is consistently distressed while travelling is worth discussing with your vet.
- My puppy is drooling and pawing at their mouth — what should I do?
- This can suggest something is stuck in the mouth, a dental issue, or discomfort from teething. If your puppy seems distressed, is drooling heavily, or you cannot see an obvious cause, contact your vet rather than trying to check inside their mouth yourself, since a puppy who is uncomfortable may snap or struggle if you try to look.
- Can teething alone explain heavy drooling in a puppy?
- Yes, for many puppies teething is enough on its own to cause a noticeable increase in drooling, particularly around three to four months old. It should still ease off once the adult teeth are through, so drooling that continues well beyond that stage is worth mentioning to your vet at a routine check.
Sources
Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.