What Illnesses Can Cause a Dog to Salivate?

There are several types of illnesses that cause dogs to salivate. Most are oral diseases, however several serious problems are more internalized and can cause severe complications. Gum disease and gingivitus are some of the most common causes of salivation in a dog. More serious illnesses include gastric torsion and toxicity.

  1. Stomatitis

    • Stomatitis is a dangerous bacterial infection of the oral tissues in a dog. It is a chronic disease, causing inflammation of the gums and facial area. Stomatitis is caused by progressive oral bacteria, leading to intense inflammation of tissue that becomes a reservoir for bacteria, making it difficult for antimicrobial drugs to reach the infection. A dog suffering from stomatitis will salivate excessively, exhibit severe mouth pain, weight loss and rough coat.

    Gingivitis

    • Gingivitis is an inflammation of the gums due to an excess in buildup of dental plaque. The bacterial and proteins of saliva mix and create a hard material that sticks to teeth. Eventually, plaque will turn into tartar and accumulate on the teeth and along the gum line. Dogs with gingivitis will exibit excessive salivation and even tooth loss. Gingivitis can be identified by redness and swelling of the dog's gums.

    Gastric Torsion

    • Large dog breeds with deep chests such as Great Danes and Dobermans, as well as many others, can be afflicted with gastric torsion or bloat as it is known commonly. This health issue is caused by collection of fluid and gas in the stomach, causing gastric dilation and forcing the stomach to rotate. Signs of gastric torsion are excessive salivation, restlessness, vomit attempts and abdominal pain. Actual vomiting indicates that the dog does not have gastric torsion. Bloat can be life threatening in not cared for properly.

    Toxins and Poison

    • Dogs will also salivate excessively if they have been poisoned or been in contact with toxins. Most sugarless candy is toxic to dogs and will force them to salivate. Ingestion of grapes and raisins in will cause a dog to salivate and vomit, and can lead to stomach failure. Many pesticides and household cleaners are toxic to dogs and can cause anything from excessive salivation to very serious health complications.