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What's this draining mass near my dog's tail? Is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 45 lbs

mass or cyst don't know ??..My Austrailian Shepard mix has a large mass below the base of her tail with a dime size hole in the middle and drains...what could it be ??

1 Answer

Most Helpful Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on June 12th, 2018

The most common reason that we will see what you are describing if it is close to the anus is an anal gland rupture. I am attaching more information about anal glands below. https://veterinarypartner.vin.com/default.aspx?pid=19239&id=4951501 I would recommend having your veterinarian examine Kye to make sure the area doesn't need to be flushed. We most commonly treat these with antibiotics and pain medication. Good luck! I hope that was helpful. Thanks for using PetCoach.

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