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Why is my spayed kitten's mammary gland swollen and blue post-spay?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | unspayed

A follow up question. My kitten (5 m.o) was spayed 6 weeks ago and fully recovered. 2 days ago I noticed that one of her mammary glands (near nipple area) was swollen and bluish. Her vet told us it can be because of the remaining milk due to false pregnancy, or hitting, and advised to put hot packs. As much as I could study, if it was the remaining milk, she would have pain. But she is totally OK, and has no pain to touch. What are your thoughts with this regard?

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1 Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on January 31st, 2019

It's not likely to be due to false pregnancy, it looks more like it was due to trauma, if i had to guess this is probably because of the clamps used during the surgery to hold the drape to the skin, it;s actually quite common and nothing to worry about.

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