Petco Text Logo
Petco Pet Logo

My Pit Bull has a growth in her mouth. Is it cancer or infection?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 47 lbs

This is a growth on the bottom of our Pitty's mouth, behind a lower canine. Is this cancer, benign tumor, or something stuck in the gum? It's actually my daughter's dog. She said that she has seen it before.

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 Stacey Anstaett, DVM

Veterinarian

Published on June 9th, 2018

That does look concerning. Unfortunately there is no way to tell from the appearance alone as to whether or not it cancerous. You are correct in that it may be a benign growth, it may cancer, or it may some sort of inflammatory mass from an infection of the gums either due to a dental problem or due to an embedded bit of small stick or something along those lines. Gingival hyperplasia (overactive growth of the gum tissue) is possible, however it usually appears less "mass-like." If she is still eating, active and happy, make an appointment with your vet at your convenience in the coming weeks to have it checked out. If she is not eating or otherwise seems ill, or if you are noticing that her breath is really bad, get her in as soon as you can. Your vet may recommend that a biopsy be considered. A biopsy is the only way to determine what exactly it is, how dangerous it is, and what needs to be done about it. I hope thats helpful for you! Thanks for using Petco Pet Education Center, formerly Petcoach!

Vote icon

2Pet Parents found this answer helpful

image
Have A Vet Question?

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

Sponsored