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Why did my dog suddenly get a non-painful spot on her back overnight?

Updated On September 23rd, 2025

Pet's info: Dog | Australian Shepherd - miniature | Female | spayed | 11 years and 7 months old | 22 lbs

My dog had this on her back this morning. It wasn’t there when she went to bed. She sleeps inside. What could it be? It doesn’t seem to hurt her.

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1 Answer

Most Helpful Answer

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

Veterinarian

Published on July 19th, 2019

This presentation could be due to a trauma or localized spot of skin infection (likely to be caused by bacteria). A check up, appropriate disinfection and possibly antibiotics (oral, topical or in a shampoo formulation) may be needed to solve the problem. Disinfection may be started at home with very diluted hibiscrub or betadine or salted water baths. Buster collar may be useful as well to avoid any licking (if any). 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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