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There are many good reasons to desex or neuter every dog, including yours!

Desexing your pet is an important part of responsible pet care. The reasons to do this include three main ideas; health, behaviour and animal welfare.

Female dogs
  • Greatly reduced risk of breast cancer if done early
  • Removes all risk of ovarian and uterine cancer
  • Eliminate risk of infections of the womb
  • Prevents unwanted pregnancies
Male dogs
  • No risk of testicular cancer
  • No risk of benign prostate enlargement
  • Reduced risk of perineal hernia
  • Reduced risk of cancer of skin near anus
All Dogs
  • Reduced behavourial problems including frustration, aggression and territorial marking
  • Improved animal welfare in Hong Kong
Females Dog health problems

Mammary or breast cancerin female dogs one of the most common types of cancer. Desexing a female dog dramatically reduces the chances of mammary cancer, and the earlier she is desexed the better. If desexing is done before the first season the incidence is reduced by 99%! Desexing after the third season does not have any preventative effect but may reduce the severity of any growths that occur. Desexing your dog early is the single most important step to preventing cancer later in life.

Pyometra.The womb can become infected and filled with pus making the dog very ill. The treatment of this problem is involves expensive and dangerous surgery. The desexing operation prevents the problem happening.

Diabetes.If a female dog has not been desexed, diabetes, is more difficult to control

Males Dogs Health problems

Male dogs are also prone to hormonally-related cancers of the skin around the anal area and in the testicles. Older male dogs are also prone to an overgrowth of the prostate gland called benign hyperplasia. This causes difficulty passing stool and urine. It can be prevented by castration (desexing). ‘Perineal hernia’ mainly occurs in uncastrated dogs. The muscles at the rear end weaken and tear, allowing the intestines and bladder to move backwards and end up underneath the skin beneath the anus. The treatment for this is a difficult surgery that may need to be repeated.


Animals that are not desexed have a full sexual drive which can cause a number of unpleasant behaviours.

  • Urinating and defaecating in the house,
  • Sexual behavior directed at the humans - especially children,
  • Destruction of soft furnishings and chewing/scratching of doorways.
  • Males may display aggression towards ‘competitors’ such as other male pets or even toward human males

The end result is an unhappy frustrated animal and a much less rewarding human – pet relationship.

Animal welfare

In Hong Kong there are over 30,000 unwanted animals killed every year. The last thing that this distressing situation needs is for amateur breeders to produce more pets to add to these numbers. We hear many common reasons why people want their dogs to breed, these include

    I can find homes for the puppies This just deprives other, unwanted, animals in rescues of a potential home.
    I want my dog to have the experience Pets do not miss experiences!
    It’s natural! Domestic pets in modern cities do not lead ‘natural’ lives. Modern breeds are not the same as wolves and wild dogs or cats.
    My dog is special! Everyone thinks their pet is special…. Having kittens does not guarantee that the offspring will be the same as the parents – genetics is much more complicated than that.

Pregnancy, giving birth and raising offspring is a very demanding and for some breeds can be quite dangerous to the mother. It is best avoided for the welfare of your pet and for the welfare of all the unwanted animals that the rescue agencies and government need to kill if they cannot find homes for them.

What does desexing my pet involve?

Desexing surgeries are common straightforward operations that are carried out at our clinic on a daily basis. Phone us on 2330 7566 and make an appointment, or discuss it with us at your puppy vaccination consultation.

We will ask you to bring your dog to the clinic in the morning and collect it again the same evening. During the admission consultation we will fully examine your dog. The surgery is performed early, so your dog will be fully awake and ready when you come to collect in the evening. We will give you full instructions on aftercare at that time. With the modern surgical techniques, anaesthetic protocols and nursing procedures available at Hung Hom Veterinary Clinic you can be assured that every care is taken with your pet’s comfort and safety.

Common Myths about Desexing

Desexing a dog makes them fat and lazy: The operation will not cause your dog to gain weight. Any weight gain is the result of you, the owner, feeding more food than the dog needs. This often happens after a young dog is desexed at 6 months old. At this age the dog has stopped growing and you should feed less food even if the dog is entire.

My dog will get a bad coat. There are many reasons why a dog has a bad coat as it gets older. We see many entire older pets with bad coats. A dog with a bad coat needs a proper examination and investigation to find the reasons why the coat is not good.


For all these reasons we strongly encourage you to get your dog desexed. It is in the interests of their health and happiness and shows that you are a responsible pet carer. This is part of “caring for what matters”, your dog’s health

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