My 8-year-old Chihuahua has a growing lump on her breast. What is it?

Question

Hi my 8 year old Chihuahua has a bump that keeps getting bigger every day and i dont know what is. Its on one of her breast. Pet's info: Dog | Chihuahua | Female | spayed | 40 years and 11 months old | 13 lbs

Dr. Melanie, BVSc MS · Accepted Answer

It could be a mammary gland tumor. It's concerning that it keeps getting bigger every day. Any suspicious lumps should be examined by the vet. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of its cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Once the cause of the lump is diagnosed, the vet can discuss treatment options if needed. Give Alice's vet a call to make her an appointment. Best of luck.

My 8-year-old Chihuahua has a growing lump on her breast. What is it?

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