- Digestive issues: Hairballs, vomiting, or gas can cause cats to produce foamy saliva.
- Stress or anxiety: Intense emotions, such as those experienced during a trip to the vet or when meeting a new person, can cause a cat's mouth to foam.
- Nausea: Cats may foam at the mouth if they have eaten something that doesn't agree with them, or if they are nauseated for some other reason.
- Seizures: Foaming at the mouth is a common symptom of seizures in cats.
- Pain: If a cat is in pain, it may express its discomfort through foaming at the mouth.
- Rage: Cats may foam at the mouth and drool when feeling aggressive or threatened, this is especially common in male cats.
- Oral inflammation: If a cat has an oral infection or irritation, it may produce foamy saliva.
- Toxins: Ingesting toxic substances, such as antifreeze or certain plants, can lead to foaming at the mouth.
- Rabies: In rare cases, foaming at the mouth can be a sign of rabies.
If your cat is foaming at the mouth for any reason, other than being angry, it is important to take them to a veterinarian for evaluation and treatment. The vet will be able to determine the cause of the foaming and recommend the appropriate course of action.