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Rabbit & Guinea Pig Spaying and Neutering guidelines


Rabbit Neutering is vital to counteract the overpopulation of unwanted rabbits and to safeguard health and welfare in individual rabbits. Female rabbits, in particular, have major health risks associated with not being neutered.

Males can be castrated from approximately 10 weeks of age, once their testicles are descended.
Females are usually spayed from four months.

Guinea pigs:

Neutering is vital to counteract the overpopulation of unwanted Guinea pigs. Neutering allows guinea pigs, which are social animals, to be kept in friendly pairs or groups.

It is expected that all Male guinea pigs over the age of four months should be castrated before being rehomed unless there is a documented medical reason. There is not an expectation that female guinea pigs should be neutered unless there is a medical indication (for example, ovarian cysts).


RSPCA Sussex North and Brighton Branch offers some heavily subsidised neutering for dogs, cats and rabbits for owners on named benefits or low incomes. Neutering is essential for a happy healthy life for your pet and prevents unwanted litters and animals ending up in rescue. We ask owners to contribute to neutering costs:

£75 for a dog spay, £55 for a dog castration

£25 for a cat spay, £20 for a cat castration

£5 for a rabbit spay/castration

Please contact us for help with neutering, by phone on: 01273 554218 – from 10.30am – 4pm daily.

As a charity we need to make our resources go as far as possible and the help we give is means tested.