Agoraphobia: Symptoms, Causes and Support Options

Agoraphobia is an anxiety disorder in which a person experiences intense fear and avoidance in situations where escape might be difficult or help might not be available if panic occurs. Contrary to the common misconception, agoraphobia is not simply a fear of open spaces — it encompasses a wide range of situations including: being in crowds or queues; using public transport; being in shopping centres, cinemas, or restaurants; standing on bridges; and being outside the home alone.

The unifying theme is the anticipated inability to escape or receive help if something goes wrong. In most cases, 'something going wrong' means having a panic attack — agoraphobia most commonly develops as a consequence of panic disorder.

The typical developmental pathway of agoraphobia begins with a panic attack in a specific location. The amygdala stores the location as dangerous. The person begins to avoid that location. The avoidance prevents the amygdala from learning that the location is safe. Over time, more and more locations trigger anticipatory anxiety and are added to the avoidance list. The 'safe zone' progressively shrinks.

The process is self-reinforcing. Every time a feared situation is avoided, the avoidance is rewarded by a reduction in anxiety — which reinforces the avoidance behaviour. The amygdala records: 'we avoided that place and survived; avoidance works'. This is precisely why the natural coping strategy — staying safe — makes agoraphobia progressively worse.

People with agoraphobia typically experience intense anxiety when they enter or anticipate entering feared situations: racing heart; difficulty breathing; dizziness; sweating; trembling; nausea; and a powerful urge to flee. They may also experience derealisation — the sensation that surroundings are unreal — which is particularly frightening in public places.

Psychologically, agoraphobia produces significant secondary consequences: shame and embarrassment about the limitations it imposes; depression from social isolation; relationship strain from dependence on others for tasks that require leaving the house; and a pervasive grief for the life that has been lost.

A healthcare professional can discuss support options for agoraphobia, which may include psychological therapy, medication or a combination. If leaving home is difficult, ask about accessible services, including remote appointments where appropriate. Treatment should be planned with a qualified professional, and progress and goals can be reviewed over time.