Neutering dogs has both advantages and disadvantages. The advantage is that dogs will live longer after sterilization, are less likely to get sick, will be more emotionally stable, and will maintain a youthful personality. Neutering female dogs can prevent some uterine diseases. Neutering male dogs can prevent prostate disease. The disadvantage is that neutered dogs have a better appetite, exercise less, and tend to gain weight easily. Moreover, the surgery has certain risks, especially for female dogs, which are more risky.