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Why is my dog constantly biting himself and getting skin bumps?

Updated On September 23rd, 2025

Pet's info: Dog | Pit Bull Terrier | Male | unneutered | 3 months and 25 days old | 40 lbs

My dog constantly keeps biting himself and as days go by I noticed he's getting all these bumps on his feet and behind his legs I would really like to know what it is .

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2 Answers

Most Helpful Answer

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Answered By Sabina Snyder, Specialty Surgery Technician

Veterinary Technician

Published on July 31st, 2017

It looks like your dog is suffering from some sort of skin allergy or severe irritant. Because you say he is always chewing at himself I assume he is very itchy. I would suggest a trip to the vet to see if they can get him some relief. The welts (the bumps you are seeing) could be from the allergy, they could be from a skin infection, or from the dog chewing himself so much. Either way, getting him to stop chewing himself is the first step in healing the skin. Your vet will be able to help you determine the best course of action. Good luck!

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    Answered By Rodrigo Roca, DVM

    Veterinarian

    Published on

    Hello, sorry to hear about Yogi. That looks to be like an allergic reaction. In dogs we worry about 3 main types of allergies, Flea Allergies, environmental allergies, and food allergies. Make sure he is on adequate flea control every month and treat your environment for fleas if your think there are fleas. Otherwise, you can try a novel protein diet (lamb, duck, venison) for 6 weeks to rule out any food allergies. If doing a diet trial, you should only feed him his novel protein diet for those 6 weeks, that is he shouldn't get any treats, tables scraps, etc. If none of this is helping, he most likely has some environmental allergies. In the interim, he should be seen by his veterinarian so that he can assess his skin and make sure he doesn't have a secondary skin infection and also to give him medications to control his itchiness. Hope this helps.

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