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My dog has a lump under his belly that's getting bigger. What is it?

Updated On September 23rd, 2025

Pet's info: Dog | Dalmatian | Male | neutered | 17 years and 8 months old

Hi could u give me advice my Dalmatian has got a lump under his belly it started small but has grown big any advice what it could be

1 Answer

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on November 18th, 2016

Without seeing Harley, it's hard to say for sure what this lump might be. Older dogs are prone to lots of different growths and tumors - some are benign and won't cause any problems, while others are malignant (cancerous) and may need to be removed to keep them from spreading. Especially since this lump has been getting larger, I would recommend having it checked by a vet as soon as you are able to. He/she can do a simple test called a fine needle aspirate, which involves removing some cells from the lump for analysis - this will help determine what kind of growth it is, and whether or not it needs to be removed.

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