Reasons for desexing your male cat:

From approximately eight months of age, male cats often develop a number of behavioural changes. They become territorial and start to 'spray' to mark areas, even inside the house. An intact male is more likely to be aggressive, get into fights and go out 'roaming' to widen his territory. This can result in fight wounds leading to severe infections, fight abscesses and incurable diseases such as FIV.

Other advantages:

In addition, but at least as important, neutering prevents unwanted litters and the needless deaths of kittens and cats – or the spread of feral cats.

Reasons for desexing your male cat:

From approximately eight months of age, male cats often develop a number of behavioural changes. They become territorial and start to 'spray' to mark areas, even inside the house. An intact male is more likely to be aggressive, get into fights and go out 'roaming' to widen his territory. This can result in fight wounds leading to severe infections, fight abscesses and incurable diseases such as FIV.

Other advantages:

In addition, but at least as important, neutering prevents unwanted litters and the needless deaths of kittens and cats – or the spread of feral cats.