Agoraphobia is a severe form of anxiety disorder as defined by the American Psychiatric Association. Data indicates that approximately 9% of American adults suffer from the disorder. The most notable symptom includes an avoidance of places and/or situations causing acute panic onset. Individuals may also express fear about being trapped without escape.
A common antecedent is a previous incident of panic in public. Once panic is associated with public environmental cues, individuals start to avoid leaving an identified safe environment (home).
Agoraphobia requires the direct intervention by a healthcare professional. The most common forms of treatment include medication and/or systematic desensitization. Combination therapy shows the best results.
For a more in-depth review, read, "What is Agoraphobia and Why You Should Care (Treatment & Prevention."