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My 10-year-old dog is suddenly lethargic and won't eat. What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 10 years and 3 months old

my 10 yr old dog has suddenly got lethargic and doesnt wanna eat

1 Answer

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on April 6th, 2019

Poor Buddy! It definitely sounds like he isn't feeling well. Lethargy and not eating are very vague symptoms that could be caused by almost any type of illness, so it's hard to say what might be wrong without being able to examine him and run some tests. Because of this, I would recommend taking him to the vet for an exam. He/she can do blood work, x-rays, or other testing if needed to help diagnose the problem and get him started on appropriate treatment.

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