Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

Why is my kitten losing hair in patches after her second shots?

Updated on September 23rd, 2025

Pet's info: Cat | American Shorthair | Female | unspayed | 2 months and 30 days old | 2 lbs

I took my kitten for her 2nd round of shots in Sat . By the time I got home she had these patches of missing hair. Is this a side effect?

1 Answer

Most Helpful Answer

Dr. Dayna, DVM, CVA

Answered By Dr. Dayna, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on November 7th, 2017

No,
Missing hair is not a common side effect of vaccinations, and certainly not within hours of the vaccines. I would worry more about things like ring worm or mites. I would encourage you to have a follow up appointment with your veterinarian. They may consider a skin scrape or a fungal culture for ring worm. In the meantime I would recommend using good hygiene as ring worm is contagious to people as well. Best of luck and thank you for using Pet Coach.
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Share

Styled arrow button