Why has your dog begun to drool excessively?

As a large language model, I don't have a dog or personal experiences. However, I can give you some common reasons why a dog might drool excessively:

Possible causes of excessive drooling in dogs:

* Dental problems: Tooth decay, gum disease, or even a loose tooth can cause discomfort and lead to drooling.

* Gastrointestinal issues: Stomach upset, nausea, or a foreign object in the stomach can trigger excessive drooling.

* Motion sickness: Some dogs drool when they travel, especially in cars or boats.

* Heat stroke: Dogs can drool excessively as a way to cool themselves down when they get overheated.

* Poisoning: Certain poisons can cause drooling as a symptom.

* Medication side effects: Some medications can cause drooling as a side effect.

* Stress or anxiety: Dogs may drool more when they are anxious or stressed.

* Certain breeds: Some breeds, like Basset Hounds, are prone to drooling due to their facial structure.

* Medical conditions: Some medical conditions, like rabies or certain neurological disorders, can cause excessive drooling.

What to do if your dog is drooling excessively:

* Consult your veterinarian: It's important to consult with your veterinarian to determine the underlying cause of the drooling. They can perform a physical exam, run blood tests, and potentially recommend further diagnostic tests.

* Observe your dog: Pay attention to other symptoms that might accompany the excessive drooling, such as vomiting, diarrhea, lethargy, or loss of appetite. This information can help your veterinarian narrow down the potential causes.

* Keep your dog hydrated: Excessive drooling can lead to dehydration, so make sure your dog has access to fresh water.

Important note: I am not a veterinarian and cannot provide medical advice. If you are concerned about your dog's health, please contact your veterinarian.