There are medical and behavioral benefits to spaying (female pets) and neutering (male pets) your animals. Early spaying of female dogs and cats can help protect them from some serious health problems such as uterine infections and breast cancer. Neutering your male pet can also prevents testicular cancer and some prostate problems. Spaying and neutering your pets generally reduces undesirable behaviors such as yowling, roaming, fighting with other male animals, spraying urine, mounting, and aggression.