In general, dogs drool because saliva helps them eat and digest food. Drool is a normal, natural part of the canine digestive process. But excessive or irregular drooling can be a sign of a health issue or injury.

What causes a dog to drool all of a sudden?

Dribbling can be a result of an issue with your dog's salivary glands, such as infection or blockage, but in some cases, drooling can also be a sign of Liver disease or sadly Kidney failure. In older pets, it is also possible that a growth inside the mouth – which may be cancerous – can also cause excessive drooling.

How can I help my dog stop drooling?

If your dog is slobbery, another invaluable tool is the 'drool towel. ' Keep dedicated, absorbent drool towels handy in every room and in the car. Make it a habit to give a quick swipe under his jowls with the towel and your best friend won't leave a trail of drool in his wake wherever he roams or rests his head.