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My cat has a bald line on its back, no redness or itching. What is it?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | 1 year and 9 months old

My male cat lost a line of hair on his back 2cm wide and about 15cm long .. no redness nor itching

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1 Answer

Most Helpful Answer

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Answered By Dr. Dayna, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on December 28th, 2017

That is definitely an interesting pattern of hair loss. I suspect this has to do with some sort of trauma. A scrape if he was trying to get “through” something, a chemical or thermal burn down the back, even a reaction to a topical medication such as a flea and tick application. From the picture the skin appears pretty normal, but pictures can be deceiving. If the fur does not appear to be growing back soon, or if it looks to be spreading then I would encourage you to have him evaluated by your veterinarian as soon as possible. Best of luck and thank you for using Pet Coach.

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