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My 9-month-old puppy has bumps that look like warts. Are they serious?

Updated On September 23rd, 2025

Pet's info: Dog | American Staffordshire Terrier | Female | unspayed | 8 months and 23 days old | 28 lbs

Papilloma possibly mast cell tumors on 9mo puppy. It won't let me attach images but they look identical in every way to ca nine warts.

1 Answer

Most Helpful Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on February 16th, 2018

Mast cell tumors are very uncommon in young dogs, so if the masses look like viral papillomas, those would be more common in a 9 month old puppy. Viral papillomas have a pretty characteristic appearance, but it is always a good idea to have your vet examine Daphne and make the diagnosis. I am attaching a handout below that discusses them in more detail. https://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=465 If there are a large number of them or they are causing Daphne pain, I would certainly recommend having your veterinarian examine her and determine how to treat them. Good luck! I hope that was helpful. Thanks for using PetCoach.

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