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Why is my puppy's fur breaking off and scalp yellowish after vaccine?

Updated On September 23rd, 2025

Pet's info: Dog | Rottweiler | Male | unneutered | 2 months and 6 days old | 4 lbs

Can you please help with this!! Marshall is about 2 months old and his fur has degraded. He has hairfall and his fur just literally breaks off. All the hair scalp and roots are filled with this yellowish thing. He also got vaccinated recently. About 15 days now

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1 Answer

Most Helpful Answer

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Answered By Jeffrey Milner

Veterinarian

Published on May 27th, 2018

You are describing what sounds like some type of folliculitis, inflammation of the hair follicles. This is commonly a secondary result of a bacterial infection to the skin atop the area where you are seeing affected follicles. Superficial skin infections are common findings in young puppies such as Marshall. Often times in dogs with black hair they can go unnoticed until more severe secondary findings are noted. If this is the case, Marshall will likely require some antibiotics and potentially some topical therapeutics to get things right again. It's possible that a vaccine reaction could have played a role, but this would not be a common manifestation of a reaction to any vaccine that I am familiar with using. Hope this helps.

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