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My senior Shih Tzu has black pus around her nipples. Is it serious?

Updated on September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | unspayed | 14 years and 3 months old | 22 lbs

Hello, My 14 year old shih tzu has black , thick puss around her nipples/ abdomen. What would that be?

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on April 11th, 2017

It could be that Zabby has an infection, but I see that she is unspayed and it could be that she is suffering from mammary tumors that have ruptured. It's quite serious that she has black thick pus in this area, and she should see a vet right away. The vet can diagnose what is causing this pus and can discuss treatment options with you. In dogs, there is a 50% chance that any mammary tumor is malignant, and surgery is needed if the tumor is malignant.
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