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Our helpful guide provides you with all the information you need about neutering. Cats Protection recommends that you get your cat neutered to keep them healthy and happy. 

What is neutering?

Neutering is an operation to prevent female cats from getting pregnant and male cats from making females pregnant.

What is spaying or castrating? Are they the same as neutering?

Neutering is the general term for the operation that prevents all cats from being able to mate and produce kittens. It is also known as spaying or castrating. Spaying is the word used to describe a female cat getting neutered, and castrating is the word used to describe a male cat getting neutered.

When should I get my cat or kitten neutered?

Cats can be neutered at any age, but we’d recommend getting your kitten neutered at around four months old. This is because female cats can start getting pregnant from around this age. To prevent any unwanted litters, it’s important to get them neutered as early as possible. An increasing number of vets offer neutering at four months old or younger. Find a vet practice offering kitten neutering near you. 

Until your cat is neutered, keep them indoors and separated from any other unneutered cats. Remember, cats aren’t selective about who they breed with and will even breed with their siblings and parents! 

Find out more about cat reproduction

The benefits of neutering your cat

Neutering prevents unwanted litters of kittens and helps to prevent more cats being born than there are homes available. Cats Protection champions neutering as a way to create a balanced cat population to ensure that every cat has a safe and happy home.

Cats are effective breeders, and female cats can get pregnant from around four months old. Making sure your kitten is neutered is particularly important.

As well as preventing unwanted kittens, neutering your cat has plenty of health benefits too.

Benefits of neutering a female cat

  • Prevents behaviours associated with being ‘in heat’ or ‘in season’. These can include calling or wailing, spraying smelly pee, trying to escape and wandering further than normal. Unneutered female cats can come into heat every two to three weeks
  • Reduces the risk of womb infections

  • Reduces the risk of tumours and certain cancers. For example, mammary cancer is over 90% less likely if female cats are spayed before six months old
  • Helps your cat to stay healthy. Pregnancies can cause female cats to lose weight, be less healthy and be more vulnerable to disease
  • Prevents worry for owners. Caring for a cat through pregnancy, birth and then looking after her kittens is hard work. It costs a lot of time, effort and money. Female cats can have up to 18 kittens a year, which is a lot of extra mouths for owners to feed and rehome

Benefits of neutering a male cat 

  • Reduces the risk of roaming. Unneutered male cats can wander far away to find a mate, making it more likely they will get lost or injured in a road traffic accident
  • Reduces the risk of them fighting with other males. This, in turn, can help to prevent them contracting and spreading infectious diseases, such as feline immunodeficiency virus (FIV) and feline leukaemia virus (FeLV)
  • Reduces the risk of spraying smelly pee in the house

  • Reduces the risk of aggressive behaviour. They can become aggressive if they get frustrated at not being able to find a mate  

Find out more about why you should neuter your cat. 

What does neutering my cat involve? How long is the operation?

Neutering your cat is a quick, routine operation, and your vet will likely ask you to drop your cat off in the morning and collect them later the same day.

Your cat will have a general anaesthetic, so ask your vet about when to feed them before the procedure. It is advisable to keep them indoors the night before; don’t forget to give them a litter tray.

When female cats are spayed, their ovaries and womb are removed. After the operation, they will have a small, shaved area on their side or belly. This fur will grow back in a few weeks. They will also have stitches, and if these aren’t dissolvable, they will be taken out by the vet around 10 days later.

When male cats are castrated, their testicles are removed. After the operation, they may have a shaved area just under their tail, and the fur will grow back in a few weeks. They may also have two small surgical wounds where the testicles were removed. Stitches aren’t used, and the wounds generally heal in around 10 days.

Effective pain relief means that the process is painless. Your cat may also come home with some pain relief medication.

Your vet may recommend microchipping if your cat is not chipped by the time they are neutered. We recommend that all cats are microchipped. Find out more about microchipping.

How long will it take my cat to recover?

Your cat will normally be on their feet within hours of the operation. It’s normal for them to be a little wobbly, tired or even excitable when they come home after being under anaesthetic, so keep an eye on them. By the next day, your cat should be eating and feeling much brighter. 

Young cats recover much more quickly than older cats, so it’s best to get your cat neutered as early as possible. Male cats also recover more quickly than females. Male cats may be up and about within minutes of the operation.

Your cat’s wound should completely heal in around 10 days. Make sure you take them for any check-up appointments and that your vet is happy with their healing.

Neutering aftercare

When your cat comes home, there are a few things you can do to help them while they recover, including:

  • create a quiet space for them to rest
  • try to keep them as calm as possible for a few days so that they can start to heal
  • make sure they wear any buster collar or other wound protection your vet advises
  • check your cat’s wound each day for any redness, swelling or discharge. If you are worried, call your vet
  • give them any medication your vet prescribes. Make sure to find out how much your cat needs and when to give it to them, and give your vet a call if you’re unsure
  • keep your cat indoors until your vet says it is ok to let them outside again

How much does neutering a cat cost?

The cost of neutering your cat will vary depending on where you live and your vet practice. Have a chat with your vet to get an accurate quote or check their website, as a lot of practices will often have costs available there.

If you are struggling with the cost of neutering, there may be help available. As the UK’s leading cat welfare charity, we're involved in programmes and work with authorities and partner charities such as PDSA to promote neutering. If you need financial assistance, we might be able to help through our means-tested neutering scheme.

Get help with the cost of neutering

Should I let my female cat have a litter before neutering?

Despite the common myth, there is no benefit to letting your female cat have a litter of kittens before you get her neutered. Because female cats reach sexual maturity so young, it may actually be harmful to let them have a litter of kittens, especially while they are still kittens themselves.

Will my cat get fat after neutering?

Once your cat is neutered, they won’t need to eat as much as an unneutered cat to stay a healthy weight. You can simply reduce their portion sizes or feed them a cat food containing fewer calories. Speak to your vet for advice on feeding recommendations following neutering if you are concerned. Find out more about feeding your cat.

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