Anxiety is often the underlying reason for aggression. The dog is fearful in a certain context – maybe when approached by another animal or person, or in a particular location – and the body prepares for the flight or fight response.
Why is my male dog aggressive all of a sudden?
1 Your suddenly aggressive dog may have an injury or an illness that's causing major discomfort and stress. Some possible causes of pain include arthritis, bone fractures, internal injuries, various tumors, and lacerations. Other illnesses may affect your dog's brain, leading to seemingly unreasonable aggression.
Why did my dog just become aggressive?
There are multiple reasons that a dog may exhibit aggression toward family members. The most common causes include conflict aggression, fear-based, defensive aggression, status related aggression, possessive aggression, food guarding aggression and redirected aggression.
