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My dog has a hard lump behind her ear. What is it and is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Border Collie | Female | unspayed | 2 years old | 40 lbs

My 1 year old border collie has a hard lump behind her ear that was not there last night. It doesn't appear to bother her at all. I'm really worried as to what it could be. Will it affect her health

1 Answer

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on January 1st, 2017

It could be an infection, cysts, or a mass. Marley should be examined by a vet to determine the exact cause. Your vet can do a fine needle aspirate to determine if it needs to be treated. If it is just a benign lump, your vet may want to just monitor it for changes.

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