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My older dog has a white bump on her neck. Is it a cyst or cancer?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Female | spayed | 15 lbs

My dog has a single white bump that looks simlar to the start of a mole on the back of her neck. Im scared it is a tumor or cancer. Please tell me what you think as soon as possible. Shes an older dog if that helps anything.

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1 Answer

Most Helpful Answer

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Answered By Daniel Fonza, DVM

Veterinarian

Published on August 10th, 2017

Hello and thank you for your post! Thank you for the pictures as this helps narrow down what this could be. It appears to be a cyst or wart like mass that has developed. If Joyce is an older dog, changes to the skin are typical and we can see warts and cysts develop more frequently with age. If you are concerned about this, then I would take her in to see your vet to see if they can definitively say whether or not it is a cyst or wart. There are simple tests we can do in the hospital setting to get a better idea of what it could be. We can stick a small needle in the mass and look at the contents under a microscope to help better understand what it could be. Hope this helps! Please feel free to contact me with any further questions / concerns you may have!

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