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My 9-month-old dog has a gray lump on her lip. Is it serious?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 9 months and 5 days old | 7 lbs

Hi my dog has developed this gray lump looking thing on her lower lip, I'm worried about it could be, she is 9 months old and is a chiweenie

1 Answer

Most Helpful Answer

Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on January 25th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. Even young dogs can develop growths. This can be a viral wart or another tumor type like a mast cell tumor, histiocytoma, among many others. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!

4Pet Parents found this answer helpful

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