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Why is my cat pulling out his hair and how can I make him stop?

Updated On September 23rd, 2025

Pet's info: Cat | Maine Coon | Male | neutered | 7 years and 1 month old | 17 lbs

I have a 6 year old, male, Maine Coon cat that I’be had since he was four months old. He reaches around his back as far as he can and pulls his hair out. He’s been doing it since I got him; however, it is much much worse now. There is clumps of his hair everywhere when I come home. Huge clumps. A vet gave me Prilosec to give him but it changed his personality and he slept all the time. I didn’t like that. Can you give me some idea of what is causing him to do this? Or maybe how I can get him t?

1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on July 7th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! This is possibly due to allergies. It really comes down to figuring out what is causing his allergies so that they can be treated or the specific allergen avoided. A secondary infection is likely and also needs to be addressed. There are many things that can cause allergies though in most cases they can be broken down into 3 big categories: flea, food and environmental allergies. Allergies are usually worked up in a stepwise fashion starting with flea allergies as this is the easiest and cheapest to take care of. If not on a flea preventative, then it would be a good idea to get started on one. If already on one then it would be a good idea to change to something else (there are many new products out in the market). If not improved in 1-3 months then it is time to move on and check for food allergies by switching to a novel diet (new protein and new carbohydrate). If that does not seem to be the issue then you are left out having to check for environmental allergies which require blood and/or skin tests. Allergies can be very frustrating to deal with at first but so rewarding at the end when we are able to treat them effectively!

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