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Causes
The primary cause of agoraphobia is panic attack associated with panic disorder. Approximately 40% of people with panic disorder develop agoraphobia.

The cause of social phobia is unknown. There is a possibility that altered function of serotonin (a neurotransmitter involved in many behaviors) may be a factor.

A frightening or threatening experience with an animal or in a particular situation can cause a specific phobia. For instance, someone who has been bitten by a vicious dog ma...Read the full article