How can I tell if my dog's breast lump is cancerous or benign?
Updated On September 23rd, 2025
Pet's info: Dog | Pomeranian | Female | 8 years and 5 months old
My dog was affected by breast tumour. If that the tumour is normal or cancer tumour. How do I find this???
3 Answers
Most Helpful Answer
Published on January 6th, 2018
This kind of lump/growth needs to be ideally assessed by your veterinarian to have a definitive and specific answer. Usually there are two ways your vet can do that a part from examining it directly during physical examination. A biopsy can be taken under local or general anesthetic, otherwise a smaller sample through a fine needle can be aspirated (this technique is called FNA= fine needle aspiration). Differentials include skin cysts, infections, benign or more sinister type of tumors. 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.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on September 18th, 2018
There is no way to determine whether a mass is malignant or benign by a description, growth behavior, or visual, I am afraid. The only way to determine that is by way of a Fine Needle Aspirate or biopsy and examination of the harvested cells under the microscope. The good news is that it is about a 50/50 split being benign/malignant and many are mixed tumors. Lumps can also be cysts or encapsulated abscesses, so I suggest you schedule an appointment with your veterinarian for an exam of the lump.
1Pet Parents found this answer helpful
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Published on January 21st, 2017
Besides a tumor, the lump could also be an abscess or a cyst. In order to diagnose what it is, Daisy Duke would need to see her vet. He or she would likely start with a fine needle aspirate, which is where a needle is inserted into the lump and a small sample of cells is taken. These cells are examined under a microscope to determine what the mass is.
1Pet Parents found this answer helpful
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