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Why is my dog drooling?

We often associate drooling with a hungry dog whose eyes are fixed on its food bowl filled with tasty food. Although some dogs drool more than others, excessive drooling is not normal in a healthy dog. Is your dog suddenly drooling more than usual? That should set off alarm bells. In the blog below, you can read more about the various causes of drooling and how to prevent excessive drooling.

Does every dog drool?

Whether your dog drools at the sight of something tasty or when they are feeling very hot, most dogs drool. This is perfectly normal. Drooling occurs when too much saliva builds up in a dog’s mouth and runs out between the lips. However, some dogs drool more than others. A number of breeds—especially larger breeds with large cheeks and drooping lips—are known to drool more than other breeds.

Is your dog drooling more than usual? This could indicate an underlying problem. It is important to find out what is causing the excessive drooling and, if it has a medical cause, address the problem.

What can cause excessive drooling?

Possible causes of excessive drooling in your dog include:

  • Dental conditions, such as gingivitis (inflammation of the gums), periodontitis (inflammation around the teeth), a buildup of tartar on the teeth, a broken tooth, or decayed teeth.

  • A foreign object, such as a piece of plastic or wood, stuck in the roof of the mouth or between the teeth.

  • Nausea; when a dog feels sick, they may start drooling excessively. This is usually accompanied by vomiting and a reduced appetite. Motion sickness can also cause nausea.

  • A mass in your dog’s mouth; this could be a tumor or a benign growth, such as a gum boil or wart.

  • Toxic substances; some toxic substances, such as those from houseplants, toads, or autumn fruits, can cause a sudden and noticeable increase in drooling.

  • Mouth ulcers can also make a dog drool excessively. These can occur, for example, if a dog has eaten something they should not have eaten, or due to an illness such as kidney failure.

  • Finally, stress can also cause excessive drooling.

Other causes of dental diseases in dogs

Most dog owners assume that a dog will stop eating when there is something wrong with its teeth. Unfortunately, this is rarely the case. Most dogs will continue to eat despite experiencing a lot of discomfort. A dog's appetite may decrease, and it may refuse hard kibble but still want to eat wet food, for example.

Besides a change in appetite and excessive drooling, there are other symptoms that may indicate a dental disease in your dog. Discolored teeth, bad breath, slower eating, bright red gums, or chewing on one side of the mouth are examples of these symptoms.

What should I do if I suspect my dog has a dental disease?

If you suspect your dog has a dental disease, it is important to make an appointment with the veterinarian as soon as possible. A vet can perform a dental check to determine if the dog has dental problems. These examinations often take place under sedation or anesthesia. It may also be necessary to take X-rays of the teeth.

After the diagnosis is confirmed, it is important to treat the dental disease quickly. Treatment often consists of a professional dental cleaning where plaque and tartar are removed from under the gums. If necessary, loose or rotten teeth and molars are extracted.

In addition to dental cleaning or surgical procedures, antibiotics, painkillers, and/or anti-inflammatory drugs may be needed.

How can I prevent dental disease in my dog?

Although some dogs have a higher risk of developing dental diseases (especially older dogs, dogs with short snouts, and small dogs), you can significantly improve your dog's dental health by following a few simple steps:

  • Brush your dog's teeth regularly with a soft toothbrush and special dog toothpaste. Start this at a young age so your dog can get used to tooth brushing.
  • Have your dog's teeth checked regularly by a veterinarian and have them cleaned when necessary.
  • Consider feeding hard kibble instead of wet food. Riverwood offers a wide range of hypoallergenic, crunchy dry foods. View our range of dry foods here.
  • Give your dog a chew snack regularly. A snack that your dog has to chew on for a longer time helps scrape plaque off the teeth. View our range of natural chew snacks here.


Prevention is always better than cure. With the above tips for daily dental care, you can save high veterinary costs and ensure your dog has and keeps a bright smile!

Many dogs already enjoy Riverwood every day. Would you also like your dog to savor our delicious foods and are you curious which variant would suit your dog best? Answer here a few questions and order a budget-friendly trial pack right away.