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Why is my senior cat losing weight, always hungry, and has diarrhea?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 6 lbs

Really need some advice. My 10'yr old has dihorea and no matter what he eats he cries for more, begging for food. He's lost 1/4 of his body weight. Our vet doesn't seem to bothered but it's hard seeing my boy like this. Vet said he had renal failer and he's on a renal diet but it's made him even more hungry and not helping. I've attached the results from blood test, I just don't get it. I thought cats with renal failure lost their appitite and not increased. And info would really help. Thanks

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1 Answer

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Answered By Lindsey Edwards MVB, BSc, IVCA

Veterinarian

Published on June 14th, 2018

These are indeed an unusual set of symptoms, thyroid disease and diabetes would be the first suspects for a cat with increasing appetite and weight loss. A specialist ultrasound scan of the abdomen may be worth while to investigate difficulties with food digestion and absorption or even tumours using up the calories

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