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My dog has a painful bump on her tail. Is it a serious growth?

Updated On September 23rd, 2025

Pet's info: Dog | Bichon Frise | Female | spayed | 7 years and 2 months old | 15 lbs

My dog had a hot spot on her tail about two weeks ago. After taking her to emergency care to treat it, the vet noticed the bump. The vet couldn’t determine if the bump caused the hotspot or vice versa. They told me to keep an eye on it to see if it gets bigger. So far it hasn’t increased but it’s still the same size. Also my dog winces if I touch it. Please advise.

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1 Answer

Most Helpful Answer

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Answered By Amy S. Eutsey, DVM

Veterinarian

Published on August 20th, 2021

Hello. From the photo that you provided, this looks like a growth that may be benign or malignant. It may also be a cyst. Your veterinarian can try to do a fine needle aspirate on the lump in order to determine if it is urgent to surgically remove it. As to whether the hot spot caused it…. that is not likely. Your pet may be licking or chewing at it and it may have had some part in causing the hotspot, but I cannot say for sure. Your next step should be trying to determine if surgery is needed to remove it. Your veterinarian can help you with that. Thank you.

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