Drooling is not exactly a foreign concept in dogs since every dog drools. However, if your furry little friend starts to drool in a manner that does not appear proportionate, you might want to consult your vet for a medical opinion. Every dog owner understands that drool is not an uncommon sight in dogs, but when it becomes excessive and sudden and for no obvious reason, it might be a symptom of a bigger problem and should be investigated. 

Every dog drools, but certain breeds are more prone to drooling than others. If your dog is not from the Boxers, Mastiffs, Newfoundlands, or St. Bernards breed, and it suddenly starts salivating excessively, then you need to find out why.

Animals are generally more prone to salivation than humans. Constant salivation is not an unusual occurrence in animals because it aids digestion and prevents the drying out of the oral mucosa. However, if your dog’s salivation comes with other symptoms, you ought to be concerned.

Can dogs be prevented from drooling?

Drooling is not exactly a bad thing though certain health conditions could lead to increased salivation in dogs. Breeds that are known for drooling do so because of how their lips and snouts are shaped, heavy, and large making it hard for the lips to completely close at the corners. Drooling is not a habit that can be broken so long as it is healthy and in proportion.  

Causes of drooling in dogs 

If you notice that your dog is suddenly drooling more than usual, then it is time to take action. First, take a close look, is your dog exhibiting any other symptoms like a cold? Is he restless, has he lost his appetite?

You can also check the dog’s mouth for any change. If there are no visible changes then you might want to visit a vet.

Extreme heat

Dogs with short muzzles like Bulldogs, Pugs, or Boston terriers are extremely sensitive to heat, so they’re more likely to drool heavily in hot weather.

If your dog is from a breed that is easily affected by heat, you should ensure that it stays away from excessive sunlight and that it drinks adequate water. In any case, drooling might also be a sign of dehydration which could lead to stroke, so it should not be taken lightly.


Sudden excessive drooling might be an indication of poisoning. The poisoning can come from poisonous substances, poisonous bait, or poisonous plants. One of the symptoms of poison is the increased secretion of saliva. If your dog is vomiting, convulsing, or showing tremors, please rush him to the vet’s office as soon as possible.

Stress and anxiety 

Like us, animals also experience stress and anxiety. They’re more likely to produce saliva when they’re excited, nervous, afraid, or stressed. For example, a frightened dog will likely salivate during car rides.

Driving is something you should introduce to your animals gradually. You can start by just placing them in the car without starting it. This way, they become accustomed to car rides without suffering adverse consequences. A dog might also salivate heavily out of excitement when playing.

Contact with other dogs during walks can also induce stress and excess salivation.

Dental diseases (Gingivitis) 

This could be anything from tumors to swelling of the cavity. A tumor or swelling in the oral cavity can prevent your dog from swallowing its saliva properly, causing it to drool excessively. The best thing to do in this case is to call your vet.

Another reason for frequent dog drooling can be swollen or red gum or a loose or broken tooth.

Gingivitis, which involves the inflammation of the dog’s gums due to bacterial infection can manifest as bad breath. Lack of appetite is another symptom. To avoid gingivitis, you need to clean your dog’s teeth daily. If any of these symptoms accompany your dog’s drooling, take it to a vet.

dental disease in a dog,

Gum and tooth deficiency 

Sometimes discrepancies occur with the gums and teeth which can trigger excessive salivation. Tooth problems such as rotten or loose teeth, and inflamed gums can lead to increased salivation. These could also cause bad breath or lack of appetite.


Cold can also lead to increased salivation in dogs.


One of the side effects of vomiting and nausea is increased salivation.

Foods with strong taste or smell

Consumption of foods with strong tastes or smells can lead to increased saliva production in dogs. If you notice this in your dog without additional symptoms, the new food is most likely the cause of the increased salivation.

Effect of medication 

Certain medications can increase drooling in dogs. The services of a veterinarian might be helpful in this case because a veterinarian can provide alternative options with less disturbing side effects. Don’t forget to read the medication instructions and ask your vet questions when you start a new medication for your pup.

woman give medicine to chihuahua dog with syringe

Salivary gland inflammation 

Inflammation in the salivary gland can cause increased production of saliva. If this happens, get a veterinarian to examine your dog.


Excessive drooling combined with whining could be a dog’s way of communicating its pain to its owner. When this happens, consult a veterinarian to know the exact cause of the pain.

Presence of Foreign Objects in their Mouth 

Having a foreign object lodged between your teeth can be uncomfortable for humans, so imagine how uncomfortable it can get for an animal. The foreign object could be anything from a fishbone to wood or pieces of bone lodged between the dog’s teeth. So, if you notice your animal drooling excessively, check its mouth to see if foreign objects are in there. Gently remove the object or get a veterinarian to do it.

There is nothing unusual about dogs salivating, it only becomes a problem if it becomes excessive or is accompanied by other symptoms.


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