It is common knowledge that there is an overpopulation of dogs and cats in our community. That reason alone should be enough to encourage responsible pet ownership to include spaying of kittens and puppies.
There are also other medical reasons to support early spaying. Early spaying is described as having an ovariohysterectomy performed before a female dog or cat has reached sexual maturity and entered their first heat cycle. When spaying is performed before the first heat cycle, the risk of developing mammary cancer later in life is reduced to almost 0%. The age range that is recommended for early spaying is between four and six months of age. This allows your kitten or puppy to develop mature lungs and internal organs to metabolize anesthesia well.
Another valid reason to support spaying of kittens and puppies is that it prevents the development of infection in the uterus which can become a life threatening situation. Finally, spaying kittens and puppies helps to prevent unwanted behaviors.