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My dog has a sudden lump behind his neck. Is it serious or what to do?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | neutered | 1 year old

So he has a lump behind his neck and I've been gone for about two days, when I left there was no bump, his diet hasn't changed nor his behavior

2 Answers

Most Helpful Answer

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Answered By Mallori Kaminski, BVSc

Veterinarian

Published on January 23rd, 2017

Any bump that appears quite suddenly like that should be evaluated by a veterinarian. It could be an abscess, or a cyst, or a tumor. The vet will likely start with a fine needle aspirate, which is where a needle is inserted into the lump and a sample of cells is taken to look at under the microscope. This will help to diagnose exactly what is going on with Zeus.

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1Pet Parents found this answer helpful

Other Answers

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    Answered By Dr. Leigh, DVM

    Veterinarian

    Published on January 30th, 2017

    It could be an abscess, cyst, or an enlarged lymph node. He should be examined by a vet to determine the exact cause. Your vet can do a fine needle aspirate to diagnose and then determine the best way to treat. He may just need an antibiotic to treat an infection.

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