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Why is my dog suddenly losing chunks of hair? What's the cause?

Updated On September 23rd, 2025

Pet's info: Dog | Goldendoodle | Female | unspayed | 5 years and 11 months old | 70 lbs

My dog lost chunks of her hair this morning, it’s very usual for her. Why?

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1 Answer

Most Helpful Answer

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Answered By Oneal Bogan, DVM

Veterinarian

Published on October 27th, 2018

Hi there. A couple things could be causing the hair loss on Annie Mae. She may have skin parasites which is causing her hair to break off in chunks. She may also have a skin allergy or a wound that caused her to loose the hair. I would recommend having her skin checked by your veterinarian to narrow down the cause and get her treated. I hope that helps. Thanks for using Petco Pet Education Center, formerly Petcoach.

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