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Why is my senior Labrador's mammary gland swollen? Should I worry?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Female | spayed | 9 years and 6 months old | 85 lbs

My 9 year old lab has 1 enlarged titty.

1 Answer

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on May 30th, 2018

Poor girl. A photo would help here. Please repost with a photo of your pets enlarged mammary gland. IF she was spayed after she turned 1 year of age, there is a hig risk of mammary cancer. Swelling can also be caused by an infected mammary gland. I would have this mammary gland tested through your vet to ensure this isn't cancerous if it is not red and if the swelling is firm and knotty. I hope that everything works out well for your pet Kaycee. Best wishes and take care.

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