Petco Text Logo
Petco Pet Logo

  • Two Easy Ways to Start Earning Rewards!

My dog has a growing lump on her chest. Should I see a vet?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Female | spayed | 85 lbs

Hi im worried about my dog. She has some kind of lesion or something on her chest i noticed it two days ago but it has gotten bigger since then any idea of what it can be ive taken a photo of it

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

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

2 Answers

Most Helpful Answer

Image profile

Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on August 4th, 2017

The photo isn't very clear, and it can be hard to diagnose something without atually seeing and feeling it. Possibilities include bacterial infection, ringworm, itching from fleas, mites, cancer, among other things. If it is continuing to get bigger, I recommend that Princess see a vet to determine the cause and receive appropriate treatment. Your vet may want to test for bacteria or fungus, do a skin scrape to check for mites, or a cytology to look at a small sample of cells under the microscope.

Vote icon

1Pet Parents found this answer helpful

Other Answers

  • Image profile

    Answered By Lauren Jones VMD

    Veterinarian

    Published on

    The lesion on Princess' chest could be due to a skin infection, ringworm, or mange. I recommend taking Princess to her vet for evaluation since this lesion seems to be growing fairly quickly. She may need to have some diagnostic testing (fungal culture and skins scrapes) to get to the bottom of this issue so that treatment can be started. I hope that all goes well!

    Vote icon

    1Pet Parents found this answer helpful

See More Answers

Related Questions

Petco Pet Education Center
Health & Wellbeing
What fish dog food helps dry skin if my dog eats Science Diet?
Is your dog's dry skin a concern? A certified vet offers expert advice on finding the best fish-based dog food alternatives to Science Diet for essential oils.
Updated on February 04, 2026
Petco Pet Education Center
Health & Wellbeing
My pet has a soft lump. How long can I wait before seeing a vet?
Discovered a soft, nickel-sized lump on your pet's chest? A certified veterinarian offers expert advice on tracking changes and when to seek professional evaluation.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My bird has PFBD. Is chest trembling a normal sign or a symptom?
Cloudy has PFBD and chest trembling. Is this normal? A certified Vet Tech explains potential secondary issues like infections and advises vet consultation for testing.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
Dog licking paws, fur loss, and jaw wound: Could it be allergies?
Is your Shih-Tzu crossbreed biting his feet, losing fur, or has a wound? A trusted vet explains these classic allergy signs and advises on treatments like Apoquel or medicated shampoo.
Updated on September 23, 2025
Petco Pet Education Center
Food & Nutrition
Is there a chart for dog food protein biological value and digestibility?
Dog food protein's biological value & digestibility: A vet explains why data is complex. Learn to judge quality by company reputation and your dog's health.
Updated on September 23, 2025
Petco Pet Education Center
Health & Wellbeing
Why does my puppy have bloody, mucousy stools despite diet changes?
Your 4-month-old puppy suffers from ongoing loose stools with mucus and blood. An expert veterinarian explores potential intestinal parasites and advises further fecal testing. Find answers here!
Updated on September 23, 2025
image
Have A Vet Question?

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

Book Now

Sponsored