Neurosis: common denominator: often psychological factors, personality factors, personality basis, a group of functional disorders, symptoms of brain dysfunction, emotional symptoms, obsessive-compulsive symptoms, hypochondriasis, somatic discomfort, often mixed. There is no organic disease, no psychotic symptoms, self-awareness, seeking treatment, relatively good social functioning, and much delay. Phobia (phobia) is a neurosis based on excessive and unreasonable fear of external objects or situations. The patient knows that it is not necessary, but still can not prevent the fear attack, fear attacks are often accompanied by significant anxiety and autonomic symptoms. The patient desperately avoids the feared object or situation or endures it with dread. Anticipatory anxiety. 1.Meets the diagnostic criteria for neurosis; 2.Predominantly fearful, the following four items must be met: ① Strong fear of certain objects or situations, with fear and degree disproportionate to the actual danger; ② Anxiety and autonomic symptoms during attacks; ③ Repeated or persistent avoidance behavior; ④ Knowing that the fear is excessive, unreasonable, or unnecessary, but unable to control it. 3. Avoidance of fearful situations and things must be or have been a prominent symptom. 4. Exclude anxiety disorders, schizophrenia, and hypochondria. Square phobia: meet the diagnostic criteria of phobia; fear of objects mainly specific environment (such as high, square, confined, crowded occasions, severe anxiety, feel unable to escape, avoidance, afraid to go out, the greatest impact on the function. Social phobia: meet the diagnostic criteria of phobia; fear of objects mainly social occasions (such as eating or talking in public, parties, meetings, or fear of making some embarrassing behavior, etc.) and interpersonal contact (such as contact with people in public, fear of eye contact with others, or fear of being scrutinized when they are relative to the crowd, etc.). It is often accompanied by low self-esteem and fear of criticism. Exclusion of other fear disorders. Can be isolated or generalized, anxiety, avoidance, can progress to panic attacks, extreme total social isolation. Specific phobia (single phobia) unreasonable fear of a specific object, mostly limited to specific objects, not changing, not generalized. 1, meet the diagnostic criteria for phobias; 2, the object of fear is the fear of place and social fear has not included specific objects or situations, such as animals (such as insects, rats, snakes, etc.), heights, darkness, lightning, blood, trauma, shots, surgery, or sharp sharp objects; such as knives; daggers; glass fragments, etc.