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My dog has a nose rash and a mysterious bump. What could it be?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 8 years old | 25 lbs

My dog has a rash on the side of his nose that looks to be from irritation from trying to push his face through his crate and get through. If this were the only symptom it would be an easy fix but he also has a single bump on his nose about the size of a ladybug. Do you have any idea what this might be?

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4 Answers

Most Helpful Answer

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Answered By Daniel Fonza, DVM

Veterinarian

Published on November 18th, 2017

It is hard to tell from the photo the characteristics of this bump. I would say it is possible it is related to trauma and I would monitor for now but it could also be a tumor (either benign or malignant). My recommendation would be to monitor it for the next 24 to 48 hours, and if it is still there in the same size or it is bigger I would have a veterinarian examin the area. Further testing might need to be considered such as taking a sample of the mass and sending it out for interpretation at the laboratory. I hope this helps guide you in the right direction. Please feel free to contact me with any other questions or concerns you may have

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    Answered By Andrea M. Brodie, DVM

    Veterinarian

    Published on September 29th, 2018

    This looks like a mass that appears to get infected on and off. I recommend you have your veterinarian examine this mass. Your vet may want to remove it permanently so it cannot get infected any more and ooze pus and blood or at least take a tissue sample from it to determine whether it is a malignant or benign growth.

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    Answered By Dr. Macartney, BVet Med, MRCVS

    Veterinarian

    Published on January 19th, 2018

    Thank you for using Petco Pet Education Center, formerly Petcoach and I am sorry that Herb has this bump near his nose. From the picture you have sent the "bump" appears to be a skin growth, though it may also be an insect bite. There are several types off masses that can grow in the skin of dogs such as cysts and lipomas. 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 bump, 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 couple weeks time. Rapidly growing masses are more concerning. In the meantime you can try a cool compress a few times a day, in case the bump is associated wth an insect bite or an infection/ inflammation of the skin. If after two weeks the bump is still present and especially if it has grown, I would advise a trip to the veterinarian for analysis. The vet will Most likely yse a method called fine needle aspiration to take a sample of the bump and test what it is. The vet will then discuss treatment options for Herb with you. I hope that this answer was helpful and more importantly that Herb feels better soon. Warmest regards to you both. We are here to help so please ask any further questions you may have on Petco Pet Education Center, formerly Petcoach!

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    Answered By Mariya Gugel, DVM

    Veterinarian

    Published on November 29th, 2017

    Thank you for using Petco Pet Education Center, formerly Petcoach! It is possible that the bump is a small wound, but also may be cancerous. Unfortunately, I am unable to determine what the bump can be without seeing a picture. I recommend having Zoe seen by a vet - they will be able to take a sample if necessary and send it to a lab in order to determine if it is cancerous. In the meantime, you can try to keep the area as clean as possible to prevent any infections and get Zoe an E-collar or "cone" to prevent her from causing further trauma.

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