Neutering can be done at virtually any age. It is best to have it done from 4-6 months of age which is just before they reach sexual maturity.
Females (‘Queens’) can come into season from 4 months, especially if they are this age in the Spring, so you can easily get caught out and end up with a load of kittens. Discuss with your vet the best time to have your female cat spayed.
Males (‘Toms’) will start to get big and begin spraying your house at around this age as well so unless you want a big stinking cat who’ll get into all sorts of scraps and be out looking for love all night get him done early! Getting your tom cat done early is a particularly responsible element of cat ownership – because you don’t want him fathering kittens on the neighbouring cats.
Sexual contact, and the fighting associated with sexual aggression and territorial behaviour of entire cats, will expose your pet to diseases such as Feline AIDS and the Feline Leukaemia Virus as well as potentially serious injuries such as cat bites. These can be deadly, worse than dog bites in many ways, and should never be ignored.
Ireland has a huge problem with unwanted kittens, which are either put to sleep or continue to produce more and more kittens, just adding to the problem. When you also consider that neutered cats will on average live several years longer than un-neutered cats it is clear that getting your cat neutered is the kindest and most socially responsible course of action.