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Why is my dog's stomach swollen, legs weak, and he's lethargic?

Updated On September 23rd, 2025

Pet's info: Dog | American Bulldog | Male | unneutered | 85 lbs

My dog is acting like he doesn't feel good. His stomach is swollen and he acts as if his back legs don't want to work. He is breathing differently not wagging his tail his eyes are red and he is sort of lethargic

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1 Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on June 24th, 2018

Poor Cotton! I'm sorry to hear that he's not feeling well. Unfortunately, this sounds like quite a serious problem. A swollen abdomen can be caused by a number of different things, including heart disease, liver disease, internal bleeding. or an abdominal tumor of some kind. His rear leg issues could be caused by some type of neurologic problem, or could be due to overall weakness due to whatever is causing the abdominal swelling. Lethargy is a very vague symptom that could be caused by almost any kind of illness. I would recommend taking Cotton to the vet for an exam right away, as this may be a life-threatening problem. Your veterinarian can do blood work and x-rays or an abdominal ultrasound if needed to help diagnose the problem and get him started on appropriate treatment.

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