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Why does my puppy have a red bump on her head that's losing hair?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 4 months and 14 days old | 2.5 lbs

My puppy had a big bump on her head and it started out really red. Then it turned into a scab and now it's taking out her hair so now she has a bald spot on her head! What could this be?

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1 Answer

Most Helpful Answer

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Answered By Jenny, DVM

Veterinarian

Published on September 20th, 2017

The hair follicle may have been infected and that can cause the hair to fall out. If the redness and swelling is going down, you can gently pull the scab and remaining hair and clean the area then apply neosporin. If the swelling persist or it is painful or ours from the scab, then your vet will need to check the area

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