Why Is My Cat Drooling? Causes and When to Worry
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Some cats drool a little when blissfully content, but sudden or heavy drooling can signal a problem. Here is how to tell.
Happy drooling versus a problem
A few cats drool a little when deeply relaxed, purring, and kneading — a leftover kitten behavior tied to contentment. That kind of occasional, mild drool during cuddle time is usually harmless. The concern is drooling that is new, heavy, constant, or paired with other symptoms.
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Dental and mouth causes
The most common medical reason for feline drooling is a painful mouth — dental disease, a fractured or resorbing tooth, gum inflammation, or a mouth ulcer or sore. Cats hide oral pain well, so drooling is sometimes the first hint that the mouth needs a look. Good dental care with brushing and tartar-control treats like [Greenies Feline Dental Treats](/products/greenies-feline-dental-cat-treats) supports oral health, but existing pain needs a vet.
Nausea, toxins, and objects
Drooling can also signal nausea, which may accompany kidney disease, digestive upset, or hairball trouble. A bitter taste from a medication or a toxic plant, or a foreign object or string caught in the mouth or throat, can trigger sudden, dramatic drooling that is a genuine emergency.
When to see the vet
See your vet promptly for drooling that comes on suddenly, is heavy or continuous, or comes with pawing at the mouth, bad breath, appetite loss, difficulty swallowing, or a foul odor. If you suspect a toxin or a swallowed object, treat it as urgent and call right away.
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Frequently asked
- Is it normal for a cat to drool?
- A little drooling during deep relaxation can be normal for some cats. Sudden, heavy, or constant drooling is not typical and usually points to a mouth problem or nausea.
- Can dental problems make a cat drool?
- Yes. Painful dental disease, a broken tooth, or mouth ulcers are among the most common causes of drooling in cats, so a dental exam is a sensible first step.