Taijin kyofusho refers to a culture specific social anxiety in Korea and Japan. A person with social anxiety in these cultures is most likely going to fear that their body odor or the act of blushing will be offensive to others.

Pyrophobia and arachnophobia are each fears of a specific stimulus. Pyrophobia (from the Greek "piras") is the fear of fire, while arachnophobia (from the Greek "arachni") is the fear of spiders. Because they are fears of a specific stimulus, they are specific phobias as opposed to social phobias.

Generalized anxiety disorder (GAD) is a mental disorder characterized by excessive worrying. Its symptoms include unproductive worrying, trouble stopping the worry process, worry about every part of daily life, and muscle tension and fatigue.

Flashbacks are one of the most prevalent symptoms of a different disorder—PTSD, or post-traumatic stress disorder.

Anxiety disorders are characterized by an unreasonable fear or anxiety. Specific phobias, a category of anxiety disorder, are a persistent and irrational fear of a specific object, activity, or situation.

Obsessions are recurrent thoughts, images, or impulses, while compulsions are recurrent, irresistible actions. A somatoform disorder occurs when there is no identifiable physical cause to explain physical symptoms. Dissociative disorders involve a splitting apart of past experiences from present memory or consciousness. Impulse control disorders are an inability to resist an impulse to perform an action that is harmful.

Trichotillomania is compulsive hair-pulling, including eyebrows and eyelashes. It is classified as an impulse-control disorder, not an anxiety disorder.

Phobias are anxiety disorders that are characterized by a strong fearfulness of an object (e.g., snakes, spiders, cars) or situation (being in an elevator, being in small spaces) that presents no realistic danger. A panic attack is not a disorder.

Post-traumatic stress disorder develops after a person is exposed to one or more traumatic events, including war, injury, assault, and natural disasters. PTSD is characterized by recurring flashbacks of the traumatic event, nightmares, hyperarousal, and high levels of anxiety.

Anxiety disorders are marked by excessive anxiety such as apprehension, nervousness, or worry. Mood disorders have to do with severe changes in one's mood (e.g., depression). Psychotic disorders are characterized by losing touch with reality through hallucinations or delusions. Dissociative disorders involve losing contact with portions of their consciousness or memory.

Agoraphobia is the fear of being in places or situations from which escape might be difficult or embarrassing. In other words, it is the fear of open spaces.

Avoidance of what causes the anxiety is an overarching behavioral response that comes with anxiety disorders. For example, the behavioral response of avoidance in agoraphobia would be not going in to crowded places.