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Why is my neutered rabbit humping and biting his companion?

Updated On September 23rd, 2025

Pet's info: Small Animal | Rabbit | Male | neutered

My older rabbit Mr Magoo keeps humping the younger one Cinnamon, they have been together for 3 years or so now and recently I have see the Mr Magoo has been biting fur off him while doing it. They have both been desexed so it won’t be that but I was wondering if it is normal or a rise of concern.

1 Answer

Most Helpful Answer

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Answered By Todd Cecil

Veterinarian

Published on November 9th, 2018

Thanks for reaching out about Mr. Magoo. It is unusual for rabbits who are castrated to become aggressive after living together for some time. Environmental stresses can shift hierarchies and start aggressions. Adrenal tumors can produce testosterone and lead to aggression. Not all rabbits get along, forever and they might have to be separated. An examination with a veterinarian with experience in rabbit could probably help you. Good luck.

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