After the dog is neutered, because the body has experienced pain, the male hormones in the body will drop rapidly. The dog will need a period of time to adapt, during which the dog will become dull, because the dog needs 1-2 months after sterilization. During the month-long recovery time, it is normal for the dog to become inactive, have no appetite, and prefer to stay in a quiet place. Owners need to give their dogs love and encouragement during this period to help them adapt to physical changes faster.