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What's this new bump on my dog's back? Is it related to lymphoma?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 6 years and 1 month old | 42 lbs

My dog has a bump on her back. She has a lymphoma on her booty 6 months ago but it looked nothing this. Please help.

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1 Answer

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Answered By Emily, DVM

Veterinarian

Published on June 17th, 2017

This could be an infected cyst, a deep pustule which is essentially a zit or some other type of skin tumor. I recommend keeping it clean and dry, monitoring it for any change in size, redness, discharge or pain. You could try applying a medicated pet shampoo daily and monitoring it afterwards. However if it becomes enlarged, red, painful or more appear or it does not go away after a couple days then Bellybutton needs to be examined by her veterinarian.

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