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Why is my dog losing weight, not eating, and acting tired after vet check?

Updated On September 23rd, 2025

Pet's info: Dog | Staffordshire Bull Terrier | Male | unneutered | 6 years and 8 months old

My staffy has been losing muscle mass, very fussy with food, eating little. Took to vets they did blood tests and say he is healthy but his spine is sticking out as well as ribs and shoulders. He is not his usual self. Sometimes diarreah, sometimes not. He is not as energetic as usual and walks last 10 minutes before he stops walking and just looks at me. Where should we go from here?

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1 Answer

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on June 29th, 2017

Poor Tyson....he looks so thin! If the blood-work was normal then the next step would be abdominal and chest x-rays to look for organ enlargement and masses. Your vet can also submit a fecal panel to look for parasites and infections, as well as a TLI to make sure he doesn't have exocrine pancreatic insufficiency. If your vet is not able to diagnose then you could take him to a specialist for more advanced testing, like an ultrasound, etc. Hope he gets better soon!

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