There are various kinds of anxiety in dogs. The most common type is separation anxiety, followed by fear of strange objects, people, or animals. The symptoms of anxiety include barking, digging, chewing, following the owner from room to room, excessive touching or licking, “dry” panting, whining, sweating from paws, soiling, sudden hair loss, self-mutilation, destructiveness, defensive growling, and occasional aggression.

The cause of anxiety is usually quite simple: the dog’s needs are not being met properly, or were not as the dog developed and matured.

Aggressive dog in shelter. Photo: Dog Breed Information Centre