Petco Text Logo
Petco Pet Logo

My dog has a 4-inch lump on her chest. Is it cancerous or benign?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | 9 years and 7 months old | 89 lbs

My dog has a lump on her chest don’t know If it is cancer it is four inches big help

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 Maria DVM

Veterinarian

Published on November 28th, 2017

I would recommend taking Daisy to a veterinarian. Without a physical examination and an aspirate of the lump it is hard to say if it is cancerous or not. Your veterinarian can either take an aspirate or do a biopsy if needed to determine if it is something to be concerned about. Thank you for using Petco Pet Education Center, formerly Petcoach.

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