The avoidance aspect is defined as behavior that results in the omission of an aversive event that would otherwise occur, with the goal of preventing anxiety.
For instance, fearing electrical wire after having heard that touching it will result in an electric shock.
It may also be caused by various specific phobias such as fear of open spaces, social embarrassment (social agoraphobia), fear of contamination (fear of germs, possibly complicated by obsessive-compulsive disorder) or PTSD (post traumatic stress disorder) related to a trauma that occurred out of doors. Social phobia, also known as social anxiety disorder, is when the situation is feared as the person is worried about others judging them. Some individuals can simply avoid the subject of their fear and suffer relatively mild anxiety over that fear.
Others suffer full-fledged panic attacks with all the associated disabling symptoms.
Most phobias are classified into three categories and, according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V), such phobias are considered to be sub-types of anxiety disorder. Specific phobias: Fear of particular objects or social situations that immediately results in anxiety and can sometimes lead to panic attacks.
Specific phobia may be further subdivided into five categories: animal type, natural environment type, situational type, blood-injection-injury type, and other. Agoraphobia: a generalized fear of leaving home or a small familiar 'safe' area, and of possible panic attacks that might follow.