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My dog has a growing, reddish lump on his chest. Should I see a vet?

Updated On September 23rd, 2025

Pet's info: Dog | Pembroke Welsh Corgi | Male | unneutered | 4 months old

I noticed a lump on my dogs chest the size of a pencil eraser a week ago it is fairly hard, and now the size of a penny. it is flat, and a reddish brown color. monty does try to scratch it at times, but will let me touch it without pain. it doesn not feel attached to the underlying tissue, only the skin when I try to move it. Do I need to go to a vet asap, or wait and watch it?

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1 Answer

Most Helpful Answer

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Answered By Jessica Keay, DVM

Veterinarian

Published on September 10th, 2018

I am sorry to hear about Monty! It is difficult to evaluate from a photo but this looks like it could be a sore/area of infected skin that is also inflammed and has become granulomatous. I would recommend having your vet examine the area. They may recommend testing such as a fungal culture to ensure it isn't something like ringworm (a fungus not a worm) and may prescribe an antibiotic or other treatment based on their findings.

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