Castration is the removal of the testicles. The operation is a one off procedure and is not reversible. Once your dog has been castrated he will never be able to father puppies.


Dogs are castrated for a variety of reasons.

For many owners the fact that he will not be able to father a litter of potentially unwanted puppies is the main reason for castration.

  • Reduction of dominance related behaviour. Many entire dogs cause problems through being overly dominant in the family hierarchy. Being castrated usually lowers the dog’s rank in the family pecking order.
  • Reduction in vagrancy. Some entire dogs have a tendency to wander and become a nuisance to neighbours, especially if there is a local bitch in heat.
  • Reduction in excesses of sex linked behaviour. Many entire dogs can become a nuisance and embarrassment with excessive mounting behaviour. Castration usually reduces this problem to a minimum.
  • Prevention and treatment of testicular cancer. Testicular cancer is far from rare in the older dog and is the main reason why we examine the testicles of your dog during a normal examination, for example at the time of the annual vaccination.

Castration can also prevent and treat male hormone-linked diseases. Certain anal tumours, perineal hernias (hernias around the anus) and prostatic enlargement can be helped or prevented by castration. If we do discover that your dog is suffering from any of these conditions, we shall discuss this with you.


  • Small risk of surgery complications – such as anaesthetic complications, post operative bleeding, swelling and patient interference with the wound.
  • Risk of weight gain – this is easily managed by changing you dog onto a neutered dog food such as Royal Canin.
  • Some owners feel that the coat of some of the longer haired breeds can become excessively ‘woolly’ after castration.



Your dog will undergo an Orchidectomy (castration). This involves removal of the testicles and will be performed under a General anaesthetic.

On the morning of the procedure a Veterinary nurse will admit your dog to the hospital. They will weigh your dog and go through the consent form with you.

An intravenous catheter is placed into the vein on the forelimb, this requires the fur to be clipped from this area. A catheter gives direct access to the bloodstream in case of an emergency and delivers the anaesthetic safely and securely.

A premedication is a combination of a mild sedative and pain relief, this helps to relax your dog. Premedications are given prior to the procedure and an anti inflammatory injection is given at this point to give maximum pain relief.

Once the premedication has had the desired effect your dog will be taken to the ‘Preparation room’ and an anaesthetic agent will be given via the catheter.

Once asleep an endotracheal tube is passed through the mouth down into the trachea (windpipe) to maintain an airway. This is attached to an anaesthetic machine and a Veterinary nurse will monitor him fully thorough out checking heart rate, respiratory rate and temperature every few minutes.

Your dog will be moved to a sterile operation theatre and his procedure performed.

Once the procedure has ended your dog will begin to wake up and once the nurse is satisfied he will to be transferred to kennels to recover. .

A Veterinary nurse will contact you to arrange a time for your dog to be collected and to let you know how he is recovering. On collection a nurse will go through all the after care information you will need to help your dog recover.

After any procedure it is advisable that your dog has a bland diet for their evening meal, this is gentle on his stomach after a general anaesthetic and being starved.

You will receive Royal Canin Sensitivity Control Diet, which is a specially formulated chicken and rice wet (meat) diet and is ideal for feeding post operation.