Advice: neutering your pet

What is neutering?

Neutering involves castrating a male or performing a hysterectomy on a female to stop the animal breeding. The operations are safe and routine and relatively painless so most animals are back to normal straight away.

It is a myth that female dogs or cats should be allowed a litter of puppies or kittens; animals do not miss mating or breeding and, for all the reasons below, it is actually a lot kinder to neuter your pet.

Ask your vet for advice as to when to neuter your pet. Cats can be neutered as early as four months old to reduce the risk of unwanted pregnancy or fathering a pregnancy.

Find a veterinary practice near you that practises early neutering Get additional information about neutering on the RSPCA main site

Why neuter?

  • Each year there are thousands of unwanted dogs, cats and small animals abandoned in London. By allowing your pet to breed you are adding to the misery, as well as the fact you will have to spend a lot of money and time looking after Mum and babies
  • Your pet will be healthier; vets studies show neutering lessens the chance of  your cat or dog contracting illnesses, such as uterine cancer in females
  • It reduces the risk of your cat catching feline AIDS (FIV). The disease is a major problem in London and your cat could catch it from sex, bites or fighting over territory, which is more common in unneutered animals. Although it cannot be passed to humans, there is no vaccination, drugs regime or cure for your cat
  • Male cats are less likely to wander and fight. They no longer ‘spray’ smelly urine to mark territory. By not roaming, this also reduces the risks of road traffic accidents
  • It can make your pet calmer and more content so it focuses it’s attention on you, not sex
  • In particular, Staffordshire Bull Terriers and other bull breeds are less at risk of being stolen for breeding and dog fighting.

What if you cannot afford to neuter your pet?


if you are on benefits, disabled, a pensioner or on low income and you have a cat, you may be eligible for the C4 Free Neutering Scheme for Cats which covers Greater London. Visit the C4 website to see if you are eligible or ring 03000 121212.

Dogs / rabbits

Contact your nearest charity clinic about low-cost neutering, or contact us (details opposite) for details of free/low-cost neutering in your area.

Contact us

For emergencies (eg. to report cruelty or sick/injured animals), call: 0300 1234 999

(Please be aware that our branch is unable to assist with reports of animal neglect and abuse, the number above is for the National Control Centre.)

To contact the branch office for other enquiries, you can:

Our postal address is:

RSPCA Central London
Box 145
2 Lansdowne Row
London W1J 6HL