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My cat has a growing head bump. Vet injected it, but I'm worried.

Updated On September 23rd, 2025

Pet's info: Cat | European Shorthair | Female | spayed | 15 years and 7 months old | 14.8 lbs

Dear Petco Pet Education Center, I’m really concerned about a bump that appeared on my cat’s head... At first, it wasn’t noticeable and it used to be very small, but with time it grew. I went to see a veterinarian and she injected the bump and said that it’s fine since there’s liquid coming out. However, I don’t like to see her with the bump on her head like that. Especially since it’s growing... Please let me know what I should do. Thanks! Warm regards, Alex

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1 Answer

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on October 4th, 2019

Hi, and thanks for your question. This lump/bump/growth should be ideally examined by your local vet to have a diagnosis established. Your vet should either perform an FNA (fine needle aspiration to analyze under the microscope the cells within the lump) or a biopsy to sample surgically the bump and determine its underlying nature. Differentials would include skin cysts, infections (unlikely), benign or more malignant type of tumors. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

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