• Chris

    Veterinary Expert
    September 24, 2025 at 12:42 am

    Hi Terill, the issues with constipation you’re seeing could be related to an underlying medical condition, especially if it’s not something your cat has experienced before. It is best for cats to have multiple dedicated water sources with fresh water. If you’re not sure how much water intake is occurring, I would consider getting 2 or 3 bowls with measured amounts so you can track it over a week and see how fast that water is getting depleted. Kidney disease, for example (or diabetes too) can lead to an increase in water intake and subsequent dehydration, sometimes with resultant constipation.

    Here’s an article from Cornell on how much water a cat should take in per day and other causes for dehydration: https://www.vet.cornell.edu/departments-centers-and-institutes/cornell-feline-health-center/health-information/feline-health-topics/hydration

    Miralax is an option to help with constipation. It’s an osmotic laxative that can be purchased over the counter. Here is our article on it for more information: https://cats.com/miralax-for-cats

    The one important thing when using though is to ensure adequate water intake, as it works by pulling body water into the colon. That’s why I would first consider figuring out if your cat is drinking excessively first by recording water intake. If so, visiting a vet to rule out underlying conditions causing excessive drinking and resultant dehydration would also be important.

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