The best time to spay or neuter your cat is around six months of age. Studies suggest that when a cat is sterilized at this age, many reproductive organ-related health problems such as uterine, ovarian, and mammary infections and cancers, testicular disease, prostatic disease, and cancer can be prevented. Another advantage is that by spaying and neutering your cat, you will decrease his or her tendency to roam and look for a mate or get into fights, thus reducing the risks of contracting contagious diseases, like feline leukemia and feline immunodeficiency virus, as well as catfights or other traumatic injuries.