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What to do if my dog has a swollen red bump on her bum and licks it?

Updated On September 23rd, 2025

my dog has an enlarged red bump on her bum and it is very swollen and looks irritated, she also keeps liking it

2 Answers

Most Helpful Answer

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Answered By Megan, DVM, CVA

Veterinarian

Published on February 28th, 2019

Poor girl! This could be a number of things from a benign tumor, an infection, a cancerous tumor and much more. I would first put a cone collar on her to prevent her from licking it or it will only get worse. Since the bump is really swollen and obviously bothering her, I would have your vet take a look at it. Your vet will be able to determine what it is and recommend the best treatment for her. They will likely put her on antibiotics and may or may not recommend to have it surgically removed. I hope this helps!

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    Answered By Jessica Desrosiers

    Veterinary Technician

    Published on August 25th, 2021

    Unfortunately, growths like this can't be determined if they're cancerous or not without an actual biopsy or sample of the spot to check what cells it is made of. That said, many other things can cause growths like this, such as cysts, blisters, infections of the skin, benign tumors, etc. I would have it checked out by your vet in person so they can take a sample if needed, and can also help clean or remove the spot if needed. If the spot is bothersome, an Elizabethan (cone) collar can be used to keep Princess from licking and chewing at it, as letting her lick at it can lead to irritation and secondary infection taking hold (which can make it even redder and more irritated). Keeping the area clean and dry and monitoring it for any changes in size, shape, color, or discharge can also be useful in helping your vet determine what is going on.

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