Petco Text Logo
Petco Pet Logo

My dog has a lump on her back. What could it be and should I worry?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 2 years and 10 months old | 22 lbs

my dog had this lump on her back, there’s no tick, which I’ve checked (I’ve marked the lump with a marker for reference in case it gets bigger she’s only had it today, but I’m worried

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 Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on November 23rd, 2019

This lump/bump/growth should be ideally examined by your local vet to have a diagnosis established. Your vet may want to perform an FNA (fine needle aspiration) or a biopsy to sample the bump and determine its underlying nature. Differentials would include skin cysts, infections, benign or more malignant type of tumors. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

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