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My senior cat is lethargic, won't eat, and has diarrhea. What's wrong?

Updated On September 23rd, 2025

Pet's info: Cat | Persian | Male | neutered | 11 years and 3 months old | 10 lbs

My 11 year old Persian cat has become very lethargic within the last 24 hours. He will not eat or drink but has had a BM, diarrhea and peed. I have an appt tomorrow at 10:20 am, he is currently sleeping. What could this be?

1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on July 11th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! Loss of appetite and diarrhea can be observed with many conditions such as gastroenteritis, dietary indiscretion, kidney disease, pancreatitis, among many other possibilities. I recommend that you have Otto evaluated by your veterinarian for further assessment and treatment. They would be able to check for these possibilities and others depending on the findings on exam. Treatment would be based on findings. Good luck and have a good night! Hoping for a speedy recovery!

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