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Updated on September 23rd, 2025
Pet's info: Cat | Siamese | Female | unspayed | 11 years and 7 months old | 6 lbs
My cat has soft big bumps on her belly and some fluid is appearing on the sheets burn in not sure if it's urine or leaking from her lumps. I can't see any openings on her lumps. She started to pick the fluid. I don't know what's going on with these lumps.
2 Answers

Answered By Daniel Fonza, DVM
Veterinarian
Published on December 17th, 2017
Answered By Dr. Melanie, BVSc MS
Veterinarian
Published on April 11th, 2018
Unfortunately it looks like to me that your cat may have a mammary tumor. Those can be common in cats who aren't spayed, and 90% of these tumors are malignant. This is something that needs to be checked out by a vet as soon as possible. If she does have mammary tumors, they will need to be removed surgically and she will have to have local lymph nodes biopsied to see if the cancer has spread. I would call a vet today to get her an appointment right away. Best of luck!
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