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My dog's side lump is growing, sagging, and feels like fluid.

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 45 lbs

I have a 5 yr old female pit mix. She has had a dime size lump on her right side at the edge of her rib cage by her abdomen. Last night we noticed it had tripled in size and her right side of her abdomen is sagging and by her ribs it feels like is full of fluid.

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1 Answer

Most Helpful Answer

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Answered By Sarah Derksen, DVM

Veterinarian

Published on November 19th, 2019

Hi. Poor Princess. Unfortunately it's so hard to tell what's going here by just photos. Could be a seroma, abscess, lipoma, or some other type of mass. We would need to have her examined and the mass tested to know more. Call and make an appointment with your veterinarian

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