Petco Text Logo
Petco Pet Logo

My dog has a growing, painless lump on her chest. Should I worry?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 9 years and 7 months old | 21 lbs

Izzy has a lump on her chest that has very slowly grown bigger over the past 12 months. She doesn't seem at all bothered by it and it doesn't hurt her if I touch it.

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Rodrigo Roca, DVM

Veterinarian

Published on July 15th, 2018

Hello, sorry to hear about Izzy. That appears like small lump, which I suspect based not the brief history youve offered that it could just be a fatty tumor. These are typically benign and do not cause any discomfort to your pet. However, the best way to determine this is by having a physical exam and likely sampling the tumor to make sure there are no cancer cells that make up this mass. Contact your veterinarian and schedule and appointment to have Izzy evaluated and have the lump checked. Hope this helps and best of luck.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored