Chenery is aggressive after neutering Chenery is aggressive after neutering probably because of pain, dogs become more sensitive when in pain and aggressive to people who are close. Some dogs are more sensitive and become more perceptive after the surgery. A warning bark will be given when someone or another dog approaches. If it is also aggressive to its owner, then the dog may be thinking that the owner brought this harm to it. Therefore some hold a grudge against the owner, and the owner needs to use actual behavior, again, to sensitize the dog and re-establish trust with the dog.
