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Why is my Shih Tzu's lumpy black mole bleeding and oozing pus?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | spayed | 10 lbs

I have a rescues Shih Tzu that has several moles, she is older so I didn't really worry too much except for this black lumpy one on her lower back that sometimes bleeds and I can push puss out of it...it's like nothing I've ever seen before.

2 Answers

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on November 14th, 2016

It could be a cyst, mass, or pustule. Have your vet take a look at it to determine the best way to treat. She may need an antibiotic to treat an infection and/or it may need to be removed. Your vet can do an aspirate to help diagnose.

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    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on June 8th, 2019

    This bump needs to be checked and analysed as there are many conditions and types of tumors that could look like that. take her to the vet, they will perform a fine needle aspiration on the bump and send it to the lab for analysis. when the result comes, the vet will advise what needs to be done according to the diagnosis.

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