Why do dogs vomit and drool?

Dog vomiting and drooling may be caused by the dog eating too fast. If the dog eats too fast and too hard when eating, it is likely to block the esophagus. A blocked esophagus or indigestion will make your dog feel uncomfortable, with symptoms such as vomiting and drooling. It is best to take the dog to the hospital for examination. Feeding should be done regularly and quantitatively to help the dog develop good eating habits.