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Why is my dog's stomach getting big? What causes abdominal swelling?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Male | 6 years and 2 months old

His stomach is getting fatty May be problem of fluid bloating

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1 Answer

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Answered By Stacey Anstaett, DVM

Veterinarian

Published on June 8th, 2018

If he is retching like he wants to vomit but cannot, take him to the vet IMMEDIATELY, as this could be a sign of a possible GDV (twisted stomach bloat) which is a surgical emergency. Likewise, if he is very weak, if his gums appear pale, or his cannot rise on his own, take him IMMEDIATELY, as this would concern me for a possible hemoabdomen (bleeding into the abdomen, often caused by a ruptured tumor on the spleen; this too is life threatening and time sensitive. Fluid buildup in the abdomen is possible as well and can occur for a number of reasons. The following are some possible causes: -liver failure -low proteins -cancer -heart failure -fluid around the heart -heartworm disease Other possible causes for a distended abdomen that occur more gradully can include: enlarged liver weight gain cancer Regardless of the cause of the appearance of his abdomen, you do need to have him seen by a vet very soon. Please refer back to the first 2 paragraphs and take him to a vet ER if he falls into either of those categories. Thanks for using Petco Pet Education Center, formerly Petcoach!

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