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Why does my dog have a solid coin-sized bump on his tail or neck?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | unneutered | 5 years and 2 months old

My dog is a shih tzu and he has acquired this solid bump prolly a size of a coin on his tail as well as in his nape. Can you somehow identify the probability of his condition? Thanks!

1 Answer

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on July 21st, 2017

They could be cysts, papillomas, benign lumps (lipoma, etc.), infection, or possible cancerous masses. The only way to know the exact cause is to have your vet do a needle aspirate and look at the cells under a microscope. After diagnosing the exact type of mass your vet can recommend treatment, if needed.

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