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My dog has a bleeding lump on her tail. What is it and is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Female | unspayed | 5 years and 9 months old | 92.594 lbs

My female labrador retriver is 5 and 9 months old and I found a lump/acne on her tail and it was bleeding heavily and I clean it with antiseptic liquid and tape it woth medical tape all I want to know is what it is and what its cause is it serious matter or a normal matter please help me.

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2 Answers

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on February 19th, 2020

Thank you for submitting your question regarding Stella. I recommend that she sees her veterinarian. The area should be shaved of all hair so that it can be thoroughly examined. She may have a wound that requires antibiotics or a mass that has grown on the tail. If a mass is present, surgery will be recommended if it is bleeding and bothering her. I hope this information helps!

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Other Answers

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    Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

    Veterinarian

    Published on February 18th, 2020

    Hi, and thanks for your question. Although a picture of it would help to give you a more specific answer, this lump/bump/growth should be ideally examined by your local vet to have a diagnosis established. Your vet may want to perform an FNA (fine needle aspiration) or a biopsy to sample the bump and determine its underlying nature. Differentials would include skin cysts, infections, benign or more malignant type of tumors. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

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