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My dog is licking his private area and has red bumps. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | neutered | 1 year and 11 months old

My dog has been licking his genitals and the area under his legs. I think I saw red bumps near his genitals. What should I do?

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2 Answers

Most Helpful Answer

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Answered By Debi Matlack

Veterinary Technician

Published on August 9th, 2016

Skin problems can have a variety of causes, sometimes more than one. [Allergies](https://www.petcoach.co/article/9-things-in-your-home-that-trigger-your-pets-allergies), bacterial or fungal infections, or even contact with some surfaces or substances will cause itching, rash and/or hair loss. It is important to have the problem checked by your vet to determine if there is a medical cause for your pet’s skin issues and treat accordingly. In pets of all ages, [fleas](https://www.petcoach.co/dog/condition/flea-allergy/), [food allergies](https://www.petcoach.co/dog/condition/food-allergies/) and exposure to chemical irritants, such as cleaners and soaps can be a cause. Any one of these may not be enough to trigger the breakouts, depending on how sensitive your pet is, but a combination can be enough to start the itch-scratch cycle. Finding out the cause and eliminating it is the best course of action. With flea allergies, if your pet is sensitive enough, a single bite can cause them to break out scratch enough to tear their skin. [Check for fleas](https://www.petcoach.co/article/what-do-fleas-look-like) with a flea comb. Look for fleas and/or tiny black granules, like coarse black pepper. This is flea feces, consisting of digested, dried blood. You may find tiny white particles, like salt, which are the flea eggs. Administer a good quality regular flea treatment and aggressively treating your house and yard will help break the flea life cycle. Prescription chewable products from your vet, such as Nexgard, Bravecto, Credelio, or Simparica are all highly effective options. If you use [plastic bowls](https://www.petcoach.co/article/here-s-how-to-know-when-to-toss-your-dog-s-beds-bowls-or-toys), this is a possible cause for hair loss, though this tends to be on the chin, where their skin touches the bowl while they eat. If you suspect this to be the culprit, try changing the bowls to glass or metal. [Food allergies](https://www.petcoach.co/article/food-allergies-vs-environmental-allergies-whats-the-difference) are often caused by sensitivity to a protein in the food. [Hill's Science Diet](https://www.petco.com/shop/en/petcostore/brand/science-diet) and [Purina](https://www.petco.com/shop/SearchDisplay?categoryId=&storeId=10151&catalogId=10051&langId=-1&sType=SimpleSearch&resultCatEntryType=2&showResultsPage=true&searchSource=Q&pageView=&beginIndex=0&pageSize=48&fromPageValue=search&searchKeyword=&searchTerm=Purina%20sensitive) offer some non-prescription options for sensitive skin, as well as prescription hypoallergenic foods for more severe cases. [Royal Canin](https://www.petco.com/shop/en/petcostore/brand/royal-canin) offers limited protein diets that may also offer some relief. Your veterinarian can recommend a specific diet that may help your dog. If there is no relief or not enough, consider a consultation with a [veterinary dermatologist](https://www.acvd.org/) and having [allergy testing](https://www.petcoach.co/article/allergy-testing-immunotherapy-in-dogs) done. Your vet may also recommend ongoing allergy medications to help manage ongoing itching.

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77Pet Parents found this answer helpful

Other Answers

  • Image profile

    Answered By Debi Matlack

    Veterinary Technician

    Published on October 4th, 2015

    Skin problems can have a variety of causes, sometimes more than one. It is important to have the problem checked by your vet to determine if there is a medical cause for your pet’s skin issues and treat accordingly. In pets of all ages, fleas, food allergies and exposure to chemical irritants such as cleaners and soaps can be a cause. Any one of these may not be enough to trigger the breakouts, depending on how sensitive your pet is, but a combination can be enough to start the itch-scratch cycle. Finding out the cause and eliminating it is the best course of action. With flea allergies, if your pet is sensitive enough, a single bite can cause them to break out scratch enough to tear their skin. Check for fleas with a flea comb. Look for fleas and/or tiny black granules, like coarse black pepper. This is flea feces, consisting of digested, dried blood. You may find tiny white particles, like salt, which are the flea eggs. Applying a good topical monthly flea treatment and aggressively treating your house and yard will help break the flea life cycle. If you use plastic bowls, this is a possible cause for hair loss, though this tends to be on the chin, where their skin touches the bowl while they eat. If you suspect this to be the culprit, try changing the bowls to glass, metal or ceramic. Food allergies are often caused by sensitivity to a protein in the food. Hill's Science Diet offers some non-prescription options for sensitive skin as well as prescription hypoallergenic foods for more severe cases. Royal Canin carries limited protein diets that may also offer some relief. Your vet can recommend a specific diet that will help.

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    21Pet Parents found this answer helpful

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