Dogs also experience anxiety just like human beings. The different causes of anxiety in dogs include aging, fear, and separation. While anxiety is a normal occurrence, disproportionate levels of anxiety can lead to aggressive behaviors if left unchecked. 3 янв. 2020 г.
How do I stop my dogs anxiety aggression?
The avoidance of situations that have induced aggression behavior should be encouraged, thereby avoiding the dog's exposure to situations, people, or animals that trigger aggression. Aggression in dogs is often treated with medications used in combination with behavioral and environmental modification.
Why is my dog being 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.
What triggers dogs to be aggressive?
Most often a dog's aggression is motivated by fear, anxiety, conflict about what to expect and what to do and the anticipation of possible punishment (see Aggression – Diagnosis and Overview, (Dominance, Alpha, and Pack Leadership – What Does It Really Mean?, and Canine Communication – Interpreting Dog Language).

Below are two helpful articles on a similar topic 👇
Do puppies grow out of fear aggression?What does it mean when a dog is aggressive towards people?