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What is this non-movable lump on my dog's belly? Should I worry?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Female | spayed

My grandmas dog has this bump below her rib cage in the middle of abdomen, I thought it was a fat lump but it's not moveable I can push on it.

4 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on September 13th, 2016

Poor Tinker! Some lipomas (fatty tumors) can become fixed, but yes general they are movable. Unfortunately, being fixed to the underlying tissue is a common characteristic of malignant tumors. Any suspicious lumps should be examined by your vet. Your vet can perform a test called a fine needle aspirate on it. To do this, your vet sticks a small needle into the lump to get a sample of it's cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. I recommend taking Tinker into your vet today or first thing tomorrow.

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16Pet Parents found this answer helpful

Related Answers from Veterinarians

  • Published on March 15th, 2017

    Even though it is likely to be another lipoma (benign lump)this kind of lump/growth needs to be ideally assessed by your veterinarian to have a definitive and specific answer. Usually there are two ways your vet can do that a part from examining it directly during physical examination. A biopsy can be taken under local or general anesthetic, otherwise a smaller sample through a fine needle can be aspirated (this technique is called FNA= fine needle aspiration). Differentials include skin cysts, infections, benign or more sinister type of tumors. Please do not hesitate to contact us again on the forum or by requesting a consultation (where you can post pictures ) if you have any more questions or to discuss it any further.

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    Answered By Laura Johnson VMD

    Veterinarian

    Published on February 11th, 2018

    Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Lipomas are very common in labs, especially in that location. Lipomas are benign fatty deposits. They tend to develop more over time. I recommend having a Vet examine any new lumps. I hope this helps!

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    1Pet Parents found this answer helpful

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    Answered By Megan, DVM, CVA

    Veterinarian

    Published on October 3rd, 2017

    These are mostly likely a benign tumor called a lipoma which is basically just fat accumulation. But since they are getting larger I would strongly recommend have your vet do an aspirate of them to ensure they aren't anything more serious. Occasionally some cancerous tumors will look like these lipomas which is why aspirating them at least once is important. I hope this helps!

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