Unaltered male cats are commonly referred to as “Tom” cats. Intact male cats have a characteristic appearance, with a heavier, more muscular body, thick neck and the typical big, heavy tomcat head. This thickening of the face is commonly referred to as “stud jowls” or “shields.” If a male cat is neutered before reaching puberty at around 6 months of age, he will not develop these secondary male sexual characteristics.
Neutering a male cat will also greatly reduce unwanted behaviors such as roaming, fighting and urine marking. Additionally, shortly after neutering, the characteristic pungent smell of the male cat’s urine will be eliminated.