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My dog has red, hard, scabby bumps on his skin. What's causing them?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 11 months and 6 days old | 55.1 lbs

My dog Vincent is having these red bumps pop up on him they are hard and about the size of a pencil eraser he currently has 4 . They don't seem to bother him but they are scabby and smell like iron when scab is removed . No pus or anything comes out .

2 Answers

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on March 11th, 2017

This is probably caused by an allergic reaction. first of all make sure you de-flea Vincent regularly every month with a high quality spot on (ex. Advantage) as fleas are by far the most common reason for these reactions. If the fleas are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids, anti histamines or Apoquel in order to stop the allergy.

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1Pet Parents found this answer helpful

Other Answers

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    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on January 31st, 2020

    This is probably caused by an allergic reaction. first of all make sure you de-flea Chelsea regularly every month with a high quality spot on (ex. Advantage) as fleas are by far the most common reason for these reactions. If the fleas are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids, anti histamines or Apoquel in order to stop the allergy.

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    1Pet Parents found this answer helpful

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