Learn
Core explanation
Core concept
Marked fear or anxiety about two or more situations (using public transportation, being in open spaces, being in enclosed places, standing in line or being in a crowd, or being outside the home alone) due to thoughts that escape might be difficult or help unavailable if panic-like or embarrassing symptoms occur.
Plain-language explanation
Agoraphobia isn't simply "fear of open spaces" -- it's a fear of being somewhere that would be hard to escape from, or where help wouldn't be available, if something distressing (like a panic attack) happened. This drives active avoidance, needing a companion, or enduring the situation with intense fear, across at least two of five defined categories of situations, for six months or more. It can occur with or without co-occurring Panic Disorder, which is a key change from DSM-IV.
Developmental considerations
Can begin in adolescence or adulthood; unlike DSM-IV, Agoraphobia is now a distinct diagnosis in DSM-5-TR that can be given independently of Panic Disorder -- a person can meet full criteria for Agoraphobia without ever having had a panic attack, driven instead by fear of other incapacitating or embarrassing symptoms.
Functional impact
Can be profoundly limiting -- in severe cases a person becomes housebound, unable to work, shop, or attend appointments without significant accommodation, making this one of the more functionally disabling anxiety disorders when unaddressed.
Associated features
Often co-occurs with Panic Disorder, but not always; depressive symptoms and substance use (sometimes used to cope with anticipated situations) are common associated features; safety behaviors (only going out with a companion, sticking to specific routes) are typical.
Cultural considerations
What counts as reasonable caution versus clinically significant avoidance can be shaped by community safety, gender norms around independent travel, and available social supports; clinicians should assess against the person's own sociocultural context rather than a single universal standard for "normal" avoidance.
Common misconception
A common misconception is that Agoraphobia requires a prior history of Panic Disorder or panic attacks. DSM-5-TR explicitly allows Agoraphobia to be diagnosed independently, driven by fear of other incapacitating symptoms (e.g., falling, incontinence, embarrassing symptoms) rather than panic specifically.
Reconsider this formulation
If the fear is limited to a single specific object or situation (e.g., only elevators), reconsider Specific Phobia. If the fear is limited to social/performance situations due to negative evaluation, reconsider Social Anxiety Disorder instead.
Example fictional case
A person avoids grocery stores, public transit, and standing in lines, always requiring a family member to accompany them, out of a persistent fear that if they became suddenly dizzy or ill they would be unable to get help or leave quickly -- a pattern present for over a year with no history of full panic attacks.
Quick recall
Know
Agoraphobia is fear of situations where escape or help would be hard if incapacitating symptoms occurred -- across 2+ of 5 situation categories -- and can occur with or without Panic Disorder.
Notice
In a case, notice fear framed around difficulty escaping or getting help (not fear of the situation itself, and not fear of others' judgment) across multiple situation types.
Distinguish
Distinguish from Panic Disorder by the situational-avoidance pattern (Panic Disorder alone does not require it), and from Social Anxiety Disorder by the absence of a negative-evaluation-specific fear.
References
APA (2022). DSM-5-TR, Anxiety Disorders.