We think of euthanasia as a merciful relief from suffering for an incurably ill or old animal. But the majority of pets are euthanized because of behavior problems. Aggressive behavior in pets must be addressed without delay. The longer it continues, the harder it is to change. Don't wait until someone is injured to seek help with this problem.
Some behavioral problems result from medical problems.
A thorough physical examination by your veterinarian can reveal an underlying problem. You can also ask your veterinarian for suggestions on curbing aggressive behavior. However, veterinarians often don't feel qualified to give such advice because their training is in medicine rather than behavior. Pet behavior is a new and growing field. If the pet is healthy and initial efforts to curb the behavior don't work, then Dr. McCullough advises immediately contacting a board-certified behaviorist.