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Why is my cat's spay incision lump growing? Could it be parasitic?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 1 year old | 6.6 lbs

My kitten, Luna, got a spaying surgery done in January at around 9 months old. She developed the normal hard lump, but that continued to grow and harden, so it was surgically removed two months later. The biopsy says it is not cancer. There was, hoever a new growth forming underneath that he could't remove. Luna has been on Disperzyme for a month, and the new growth is starting to grow and harden. Doctor says it's a parasitic thing. I have two other cats. Please suggest a treatment for Luna.

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1 Answer

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Answered By Joy Fuhrman, DVM, MBA, CPA

Veterinarian

Published on April 16th, 2018

It certainly looks like this surgery site is infected. This could be due to parasites or it could be a bacterial or fungal infection. I recommend you ask your vet to have the mass cultured to determine exactly what is causing the infection. That way he/she can ensure that the correct medication is being used to resolve the infection.

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