Why is my dog salivating excessively?

Why is my dog salivating excessively?

Tooth decay, gum inflammation, tartar buildup, and oral tumors in the mouth and/or throat will cause dogs to drool more than normal. Oral and dental diseases, if they advance, can cause serious illness throughout the body and even be life-threatening in some cases.

Do dogs salivate when stressed?

Dogs may also drool and lick excessively when nervous. Changes in eyes and ears. Stressed dogs, like stressed people, may have dilated pupils and blink rapidly. They may open their eyes really wide and show more sclera (white) than usual, giving them a startled appearance.