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My kitten has a swollen cheek. Is it an abscess or vaccine reaction?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered | 3 months and 22 days old | 3 lbs

My 11 week old kitten has developed a large swelling in his right cheek. Can this be caused by his vaccinations which he received about a week and a half ago?

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on August 23rd, 2017

Swelling in this area is unlikely to be related to vaccines. Other possible causes for swelling in the cheek area is an abscess (infection), infected tooth, or trauma. I recommend that Gus get this swelling checked out by a vet. If there is an abscess, it will often need to be lanced to release the pus and pressure so that antibiotics can get to the source of the infection.

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