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My dog has a red lump on his neck, but acts normal. What is it?

Updated On September 23rd, 2025

Pet's info: Dog | Peekapoo | Male | neutered | 13 years and 9 months old | 11 lbs

I was out of town for 5 days and my dog was under a friend's care. When I came back, I immediately noticed a lump/mass under his neck that is reddish in color. The skin isn't broken. What could this be? Was he harmed? He is eating normal and acting normal.

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1 Answer

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on January 4th, 2020

Hi, and thanks for your question. 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!

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