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How Much Water Should My Dog or Cat Drink?

Drinking much more than usual is an early sign of diabetes, kidney disease and other problems, so it is worth knowing what is normal.

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General guidance for healthy pets, not a diagnosis or treatment. Your vet knows your pet and gives the right advice.

Common questions

How do I measure what my pet drinks?

Fill the bowl with a measured amount in the morning and measure what is left 24 hours later. Repeat for 2–3 days.

My cat hardly drinks. Is that a problem?

Cats get much of their water from wet food. Fountains, wide bowls and extra water in food help cats prone to bladder problems.

Why is my old dog drinking so much?

Kidney disease, diabetes, Cushing's disease and some medicines cause thirst. See a vet, ideally with a urine sample.