Caring for your dog

De-sexing your dog

TxT 2 Desex campaign

For a limited time we're offering free de-sexing for registered menacing dogs, see TxT 2 Desex for details.


Best time to de-sex your dog

Male dogs can be castrated from six months. 

Bitches can be neutered from six months, or if they have had a season, four weeks after a season or four weeks after a false pregnancy.

How to get your dog de-sexed

A vet will remove your dog's reproductive organs while your dog is under anaesthetic.

Usually, you will be able to take your dog home the same day. The vet will remove the stitches 10 days after the operation.

The cost of de-sexing varies between vets. To find a vet, look in the Yellow Pages.

In cases of genuine financial hardship, the SPCA may perform the operation - phone 09 256 7300.

The Humane Society may also offer financial help 09 630 0510.

Benefits of de-sexing your dog

There are many benefits of de-sexing male and female dogs (bitches).

De-sexing does not change the personality of your dog. It makes them more sociable and easier to train and handle.

De-sexing eliminates reproductive drive in dogs. This helps reduce:

  • the number of unwanted puppies
  • health and safety risks for your dog
  • the need to keep your bitch confined while in season
  • expense of raising unwanted puppies
  • your dog's drive to escape to mate
  • registration cost of your dog - Register your dog.

  • Dogs generally live longer and healthier lives.
  • They have a lower risk of getting various cancers and diseases of the reproductive organs, such as prostate cancer/disorders in males, and cystic ovaries, ovarian tumours, acute uterine infections and breast cancer in females.
  • As male dogs age, the prostate gland frequently enlarges and causes difficulty urinating and defecating. Neutering will solve, or greatly help this problem.
  • Female dogs have a lower risk of getting mammary cancer, prostatic disease, perianal tumors and perianal hamias and other diseases.
  • Male dogs have no risk of testicular cancer.
  • Female dogs have no risk of a pyometra - a life-threatening womb infection.
  • Female dogs have a lower risk of false pregnancies - a common and distressing condition.


  • Dogs are less likely to wander, roam or stray and are therefore less likely to be hurt in a traffic accidents.
  • They are less likely to be aggressive and are easer to train.
  • When a male dog is entire, he may travel for miles searching for bitches in season. If he finds a bitch he may fight with other dogs.
  • When a bitch is entire, her behaviour may change when she is in season; she may become aggressive and roam to find a male dog.
  • Male dogs are less likely to behave anti-socially, e.g. mount people's legs and mark their territory.


Lowers the cost for:

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