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My cat is losing hair on her behind and at the base of her tail. Why?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 3 years old

My cat is losing hair on her behind and her hips by the base of her tail? It is just thinning , I can see her shin? Any suggestions?

1 Answer

Most Helpful Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on January 24th, 2018

The most common reason that we will see hair loss at the base of the tail is a flea allergy. Even if you do not see fleas on Benny, it is still possible. Cats are very good groomers, so they will often groom the fleas off themselves before we can find them. And if a cat has a flea allergy, they only need 1 flea bite per week to keep them itchy. So, my first recommendation for Benny is to make sure that all animals in the house are on regular flea prevention. I am attaching an article on flea control that also has a link to flea control products. https://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=1575 If you are not seeing improvement with a flea prevention or notice any bumps or redness in that area, I would be certain to have your veterinarian examine Benny to see what else might be going on. Good luck! I hope that was helpful. Thanks for using PetCoach.

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