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My dog is constantly itching his tail and anus. Why is this happening?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | unspayed | 1 year and 9 months old | 55 lbs

Why is my dog itching his tail and anus constantly?

2 Answers

Most Helpful Answer

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Answered By Linda G, MS, DVM

Veterinarian

Published on October 9th, 2019

Hello. Itching, especially in the back end, is generally due to allergies, especially to flea bites, but there could also be some inflammation in the rectum itself. This can result from inflamed/infected anal glands or even the presence of intestinal parasites. It would be best to have Buster evaluated by your veterinarian so that a proper diagnosis can be made & this will allow for the correct treatment/medication to start. Once this is done, Buster should be much more comfortable. Thanks for using Petco Pet Education Center, formerly Petcoach.

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on January 5th, 2017

    This behavior can be a sign of intestinal worms or impacted anal sacs. Neither of these causes are serious, but Rocco should see a vet tomorrow. Bring along a sample of his feces with you for the vet to examine. The vet can diagnose if he does have parasites, and can give him a deworming treatment. The vet can also feel his anal sacs, and express them if needed.

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