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My cat has a swollen hole with pus near her tail. Is it an abscess?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 10 lbs

My cat has what looks like a small hole in her back near the base of her tail it was swollen with puss which came out rather easily and liquidy it then went from puss to blood, the swelling has reduced.

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1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on September 13th, 2017

It looks like Izzy has an abscess. In that location it is usually due to a bite from another cat. It is actually good that it burst open. It may heal now if you keep it clean (1:10 dilution of Betadine solution to water) and apply Neosporin ointment to it. However, often times once it seals closed the infection will return. More often that not cats need antibiotics to get these to heal completely. So, my suggestion would be to get her to your vet for an exam and some antibiotics. If you want to try to keep it clean and treat it at home you can try that but if it appears to heal and then comes back she will need to see your vet. Hope this helps. Best wishes!

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