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Dog chewing tail after haircut, has open bleeding sores. Help!

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 9 years and 3 months old | 25 lbs

I noticed that since her last haircut, Pepper has been chewing on her rump and her tail. I could not find anything on her rump, but when we took a closer look at her tail, we found two bleeding, open sores, one bigger than the other. The smaller one is barely visible, but the larger one (see photo) is clearly visible and appears irritated (most likely as a result of her chewing). We hope there's nothing serious wrong with her, we love her too much.

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1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on August 7th, 2018

Place an e-collar (cone) on her to prevent further licking or chewing. Sometimes, there can be some clipper burn after a grooming which can cause some irritation. The image attach shows what appears to be a small mass or lump. To determine what it is, you will need to have Pepper physically examined by your veterinarian. A fine needle aspirate can be done in the clinic to collect samples for pathology. This may provide a diagnosis. In the meantime, the cone may be enough to allow for healing. Your vet can dispense antibiotics and/or anti-inflammatories if indicated.

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