Spaying and neutering cats and dogs: the right age and the benefits
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Cats are best spayed or neutered at around 5 months. For dogs it depends on their expected adult size: small dogs at around 6 months, large-breed males usually once they stop growing, between 9 and 15 months; for large-breed females the vet will discuss timing with you. Your vet confirms the best timing after an examination.
Health benefits
- Spaying females sharply lowers the risk of mammary (breast) cancer and prevents womb infection.
- Neutering males removes the risk of testicular cancer and lowers the risk of an enlarged prostate.
- Studies show spayed and neutered pets live longer on average.
- It prevents unwanted litters and reduces the number of stray animals.
Behaviour benefits
- Ends heat cycles in females, and the restlessness that comes with them.
- Reduces roaming, urine marking and fighting in males.
Are there risks?
As with any surgery under anaesthesia there are risks, though they are usually low. Neutered pets can gain weight more easily, which the right food and exercise keep in check, and some spayed female dogs develop urinary incontinence. For some dogs, especially large breeds, the vet will discuss timing with you to lower the risk of joint problems and certain diseases.
Before and after surgery
- We examine your pet before surgery to make sure they are ready for anaesthesia, and may recommend blood tests.
- We’ll tell you how long to fast your pet beforehand.
- Afterwards: rest for a few days, stop them licking the wound with a cone or recovery suit, and come back for the follow-up the vet books.
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This information is for general awareness and does not replace a vet’s examination. If your pet is unwell, contact us directly.