Triggers and causes
DOG NOISE ANXIETY CAN START when experiencing a traumatic incident, such as a loud, heavy thunderstorm. In most cases the triggering factor is not as obvious. Some dogs develop noise anxiety gradually. For others it is evident from their puppy days onward. There might be a genetic aspect to the condition. Studies have shown that some breeds, such as herding dogs, are more likely to be frightened by loud noises2.
In all cases it’s important that the people around the fearful dog behave normally during the situations that trigger noise anxiety. Most dogs are sensitive to the owner’s behaviour.
What causes noise anxiety?
2) Overall Karen L. 2013. Manual of Clinical Behavioral Medicine