Females

To reduce the number of unwanted litters

• The number of kittens born each year is greater than the number of available homes.
• Many kittens end up in animal shelters or are put to sleep.

To prevent seasons

• A female cat will come into season 3-4 times per year.
• The season may last up to 3 weeks if she is not mated
• During this time there is a change of behaviour. - she may hide, seek attention, and roll around on the floor, call and spray urine around the house or garden.
• Male cats will travel great distances in response to a female calling, and will spray all around the area the queen is located (even if she is locked inside)

To reduce the risk of developing mammary cancer

Elimination of ovarian cancer

Males

Prevent urine spraying

• Uncastrated male cats mark their territory by urine spraying.
• The urine has a characteristic pungent odour which is unpleasant in and around the house and very difficult to remove

Reduce the tendency to roam

• Cats are territorial by nature and Tomcats quite commonly patrol a large area ( up to 5km diameter)
• Undesexed males are more likely to instigate cat fights
• Viral diseases such as Feline Immunodeficiency Virus (Cat “Aids”) are transmitted by biting, hence roaming, fighting cats are more at risk of being exposed to these diseases
• Undesexed male cats are more likely to be hit by a car while they are roaming

Reduction in aggressive behaviour and sexual tendencies such as mating teddy bears.

Eliminate testicular cancers and reduce risk of prostate disease .