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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.

1 Answer

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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