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My cat isn't eating or drinking and lost weight. What should I do?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 12 lbs

Hi. My 3 year old cat hasn't eaten or drank water since Friday. I usually give him 65 grams of food (as recommended on the bag of food). Saturday he ate only a little, Sunday nothing and today nothing. The only thing we changed was his litter. He used to have silica litter but on Friday we changed to normal litter. He didn't have a problem with it, he used it right away. He also lost 500 grams. I called a vet but I couldn't find one available. I am really worried.

1 Answer

Most Helpful Answer

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Answered By Christie Long, DVM

Veterinarian, Certified Veterinary Acupuncturist

Published on January 23rd, 2017

I doubt very much that the litter change had anything to do with the signs you are currently seeing in Misu. Lack of appetite and not drinking water are both serious problems that could be caused by pain, nausea, internal organ problems (like kidneys or liver), or intestinal issues. Unfortunately these are very vague signs and he will need some tests, like bloodwork, urinalysis, and possibly x-rays to determine what is going on, and how to treat it. I urge you to call again and make an urgent appointment, or take him on to see an emergency veterinarian tonight.

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