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My cat has a bump and rash at injection site. Should I worry?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | unneutered | 8 months and 3 days old | 6.52 lbs

My cat is having a bump in his thigh where he received an injection from a vet a few days ago since he was ill. It feels like a bloodstream underneath and whenever i touch that area, the cat tends to run away. There is also a small rush in that area too which my cat would often lick. I'm planning to go the same vet again tomorrow but can i assume it happened because the doctor didn't give a proper injection? Is it a serious health issue because i'm worried. Thanks a lot.

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1 Answer

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on July 1st, 2019

Hello, sorry to hear about Toe. Occasionally with injections, they may develop inflammation and pain in the area for up to 3-5 days. If the swelling does not resolve then he should be seen by his veterinarian to ensure Toe is not having a reaction to the vaccine that would warrant further medical intervention. You can place an ice pack at the area of the injection site 3-4 times daily for 5 minutes at a time to help decrease the swelling and pain. Hope this helps and best of luck.

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