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My cat won't drink water, is dehydrated & losing weight. What to do?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Female | 4 years and 9 months old | 10.4 lbs

Rosie is a 4 1/2 year old healthy cat who now won’t drink water. 3 weeks ago yearly vet visit she’s great! Now she’s lost ~ 1/2 pound. Acts fine, no evidence of disease or illness except minor dehydration. SubQ fluid, Covenia, DEXA given by vet yesterday as she’s had UTI in past. Have cat water fountain she loves - no interest now. Eats dry urinary + calm Royal Canin and 1 spoon pumpkin per day. Will not eat moist. Yesterday and today she licked liquid of small can of food. WORRIED!

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1 Answer

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Answered By Jenny, DVM

Veterinarian

Published on December 15th, 2017

Have they checked her urine this time? If she was borderline dehydrated at the vet and not drinking for you, I would have her rechecked as she may be getting worse and need IV fluids to correct this until she feels well enough to start back on her own. You can try canned tuna or chicken to see if she likes that juice or even baby food to get her to lick. You can try to syringe a small amount in her mouth and see how she responds or leave a bathroom or kitchen faucet dripping and sometimes they prefer that as a water source.

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