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What is neutering?

Neutering means surgically preventing pets from reproducing. In males, the operation is called castration and in females it’s called spaying.

With castration both testicles are removed which takes away the main source of the male hormone testosterone. With spaying, both the ovaries and the uterus are removed which means the female is unable to become pregnant. Both operations are carried out under general anaesthetic. Every surgical procedure has some risk but modern techniques are very safe.

It is not necessary to let your animal have a litter before she is speyed. Not only is it not necessary for her mental wellbeing but you are then producing more animals to add to the UK’s overpopulation problem. Every puppy or kitten you rehome may then go on to be bred at their new home as well. Also there is no guarantee that the offspring will have the same temperament or will even look like the mother.

Why should I get my animal neutered?


Population control. There are thousands of unwanted animals every year looking for new, loving homes. Every puppy or kitten your animal produces will need a home, and these can be hard to find especially when litter sizes can easily be greater than 10. Don’t forget that every puppy and kitten effectively takes a potential home away from a stray and many strays are put to sleep because homes are not available.

Health. Unneutered female animals can suffer from uterine infections which can be fatal when untreated. Treatment for these normally involves neutering which is a much more complex and expensive operation if done when the animal is ill.

Unplanned matings carry a risk of transmission of venereal and other contagious diseases such as feline AIDS and feline leukaemia in cats and transmissible veneral tumours in dogs. Also both pregnancy and birth involve risks to the mother. Can you afford a caesarean section if it is required?

Early neutering will reduce the chance of developing a number of cancers which are sex hormone linked including mammary and anal tumours.

Females with infectious conditions may pass these onto their offspring.

Welfare. Unwanted kittens and puppies are more likely to suffer from various infectious diseases and parasite loads.

Nuisance. Female dogs will come on heat about every 6 months and will be extremely attractive to male dogs. You may find that you have to confine them to the home during this period to deter ardent suitors. They will also produce a vulval discharge which can be quite mucky to clear up.

Female cats will “call” every few weeks from Spring to Autumn. Not only can their cries be extremely raucous but you may find unneutered tom cats in your house and garden with the attendant problems of spraying, fighting and caterwauling both day and night.

Rabbits. The incidence of uterine tumours in rabbits has been reported to be as high as 80% by 4 years of age. This kind of tumour can be fatal and often causes significant bleeding.

Aggression between rabbits can be reduced by neutering.

Rabbits can produce an astounding number of offspring if left to breed unchecked. Make sure you know what sex your bunnies are!



Health. Neutering removes the risk of testicular cancers in later life. These are particularly prevalent in animals with undescended testicles but are also frequently seen when both testicles are in the normal position.

Neutering markedly reduces the likelihood of dogs developing prostate problems in later life.

Fighting male cats are more likely to spread disease such as feline AIDS

Welfare. Unneutered animals are more likely to roam and subsequently to be picked up as strays, hit by cars, go missing or receive injuries from fighting.

Behavioural. Unneutered animals are both more likely to show aggression and also to be the target of aggression from other animals than neutered ones.

Nuisance. Entire male cats are more likely to spray, caterwaul and fight.

Rabbits. Aggression is a common problem between rabbits kept together and fighting injuries are often testicle related. Neutering male rabbits can help reduce fighting.


When should I get my animal neutered?

We normally neuter bitches between 5 and 12 months old and dogs from 5 months old.

We neuter male and female cats from 4-6 months old. Female cats can be pregnant from 4 months so if your cat has outdoor access or if you have an unneutered male we recommend neutering early.

We neuter does and bucks from 4-5 months old.

Call and talk to one of our vets and nurses about neutering other species or why not bring your pet along to one of our free nurse clinics for a check-up as well.


Cost of neutering

Having your puppy or kitten vaccinated under the Maes Glas puppy and kitten package entitles you to a 10% discount on the cost of neutering but your animal must be neutered before it is 12 months old.

Dog Trust Vouchers - unfortunately, the Dogs Trust is no longer able to assist with neutering costs

Discounted cat neutering can be arranged by calling the Cats Protection League on 03000 121212 Monday to Friday 9am - 1pm.

If calling the CPL for assistance, please provide your full name, full address including postcode, telephone number, and details of the number and sexes of the cats you would like neutered. You will also need to advise them of any state benefits you receive and your total household income per month.

Bridgend Branch
Tel: 01656 652751
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Porthcawl Branch
Tel: 01656 782345
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Pencoed Branch
Tel: 01656 862490
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Llantrisant Branch
Tel: 01443 220580
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Barry Branch
Tel: 01446 742800
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Cowbridge Branch
Tel: 01446 502076
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