Early Age Desexing

Below you will find a list of scientific research papers, information and articles on early age desexing of cats and dogs:



desexing benefits in general 

  • Reduced risk of getting cancer or other diseases of the reproductive organs, such as testicular cancer, prostate cancer/disorders in males, and cystic ovaries, ovarian tumors, acute uterine infections and breast cancer in females, and also other diseases like perianal tumors and perianal hernias.
  • Females can suffer from physical and nutritional exhaustion if continually breeding.
  • Pets generally live longer and healthier lives.


  • Pets are less prone to escape, wander and fight, and are less likely to get lost or injured.
  • Reduces territorial behaviour such as spraying indoors.
  • Less likely to suffer from anti-social behaviors and aggression. They become more affectionate and become better companions.
  • Eliminates "heat" cycles in female pets and their efforts to get outside in search for a mate.


  • Reduces the cost to the community of having to care for unwanted puppies and kittens in pounds and shelters.
  • No additional food or vet bills for the offspring.
  • No vet bills for pregnancy and birthing and post birthing complications.
  • No need to find homes for unwanted or unexpected litters of puppies or kittens.
  • Save money from expensive surgeries from car accidents or fights, which are less likely to occur if your pet doesn't roam around.
  • Dumping puppies and kittens is an ethical cost, as well as being illegal and inhumane.
  • The price of desexing is more affordable to those in financial need with the assistance of organisations such as NDN.

Click here to watch a YouTube video on paediatric desexing developed by Humane Alliance. Go to the Humane Alliance website for further resources and information.

Click here to read about scientific research on the development of behaviour in adopted shelter kittens after early age desexing.

Click here to read a report on the availability of early age desexing in the Gold Coast, Queensland.

Click here to read the Sentient, the Veterinary Institute for Animal Ethics, statement of support for EAD and G2Z.