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My senior Lab has weight loss, hair loss, itching, and breast lumps. Cancer?

Updated on September 23rd, 2025

Pet's info: Dog | Golden Labrador | Female | spayed | 90 lbs

I have a 9 year old Female Spayed Lab. She has Tyroid issues and has been on Meds since Feb/March 2018. recently she has lost a lot of weight, is excessively loosing hair, is lethargic, itching consistently and seems to have some possible lumps in her breasts. Should I be taking her into the vet? could It be Cancer?

1 Answer

Most Helpful Answer

Andrea M. Brodie, DVM

Answered By Andrea M. Brodie, DVM

Veterinarian

Published on September 25th, 2018

It would certainly help to have Kaylee examined by your veterinarian asap. Since she has a history of hypothyoidism her thyroxin levels will need to be checked. If the levels are not correct, ie her medication needs to be adjusted, there is a possibility that the hair loss and itching are caused by that. She may also have been infected with mites, so her skin needs to be examined. The lumps on her mammary glands will also need to be examined as they could be tumors indeed. About half of the mammary tumors in dogs are benign the other half is either mixed or malign. So your veterinarian will need to take some tissue to determine the type of tumor. Please schedule an exam with your veterinarian soon.
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