My dog has a bump on her lip. Is it a cold sore or skin growth?

Question

I was wondering if dogs can get cold sores. My 1 year old pitbull mix has developed this sore on the outside of her lip over the course of 2 days. Do you have any idea of what it looks like? Thank you. Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 1 year and 7 months old | 40 lbs

Dr. Macartney, BVet Med, MRCVS · Accepted Answer

I am sorry that Kylie has developed this lump on her lip. Dogs can get viral lesions, though this does not appear to be one. From the pictures you have sent the "bump" appears to be a skin growth. There are several types off masses that can grow in the skin of dogs such as cysts, lipomas, allergic reactions and even some type of cancers. Some are benign and some are malignant, so careful observation is important, as well as having a vet examine it if you are concerned. Since you only just noticed the lump, I would continue to monitor it for growth, ulceration, changes in texture or color. Measure the mass with a ruler so you can compare its growth in a weeks time. Rapidly growing masses are more concerning. I hope that this answer was helpful and more importantly that Kylie feels better soon. Warmest regards to you both.

My dog has a bump on her lip. Is it a cold sore or skin growth?

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