Neutering or Spaying
    Every year hundreds of thousands of unwanted domestic cats and kittens are destroyed because homes cannot be found for them. To avoid contributing to this problem, a cat should be altered (surgically treated to make it incapable of reproducing) unless it is a registered, pedigreed member of a responsible breeding program. A female cat is spayed (altered by removing the uterus and ovaries); a male cat is neutered (altered by removing the testicles). Cats that have been altered are healthier and easier to live with. Unaltered females may be susceptible to uterine infections and ovarian cysts; unaltered cats of both sexes may mark their territory by spraying urine. Some veterinarians recommend altering cats as young as 12 weeks of age, while others recommend waiting until the animal reaches sexual maturity (at six to ten months of age). Current veterinary research indicates that early altering has little negative effect on a cat's health; a low-quality diet, however, can cause serious urinary tract problems.