Celia Haddon - Cat Expert

Understanding animals through their behaviour


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Copyright Peter Gurney

You must neuter your male guinea pigs. Guinea pigs are social animals that need the company of their own species. Unfortunately some guinea pigs are still kept without the company although it is cruel to keep them alone (DeKnegt 2012). So in order to avoid a population explosion, you will have to neuter the male guinea pigs if you are keeping a mixed sex group or a male/female pair. Neutering the male is easier for vets to do than spaying the female, but females can be spayed if necessary (Murray 2006). Neutering the male should also reduce aggression (Johnson 2009).


Johnson, D., (2009), Essential Exotic Companion Mammal Surgeries’,’ Association of Exotic Mammal Veterinarians 2009 Conference Proceedings, 57-63

De Knegt, S., (2012), ‘Welfare assessment in young pet rabbits and guinea pigs in the Netherlands,’ Dissertation Utrecht University, 1-67

Murray, M. J., (2006), ‘Spays and neuters in small mammals,’ Proceedings of the North American Veterinary Conference, 1757-1759.


These notes are my copyright. I am also usually happy to have the exact words reproduced on websites, in return for a link, my name, and if permission is asked beforehand. I like to check the websites where it might be used. Email me via this website for permission which will usually be given. Organisations wishing to use them in print should contact me via this website. Copyright © 2007 Celia Haddon. All Rights Reserved.

Safety notice.

All normal safety precautions should be taken when dealing with animals. The advice in this section should be taken only at the owner’s own risk. All sick animals should be seen by a vet.

General advice of the kind found in this website is no substitute for an individual consultation with a vet or qualified behaviourist working on a vet’s referral.

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