Delusional Disorder

The disorder is classified as a delusional psychotic illness in which a person has difficulty recognizing reality. The delusions are a false belief based on incorrect interpretation of reality and, like all psychotic symptoms may occur as part of many different psychiatric disorders. The term "delusional disorder" reserves for when the delusions are the most prominent symptom and are not present criteria for the diagnosis of schizophrenia.
A person with this disease remains firmly one false belief, despite clear evidence or otherwise of a proof. In delusional disorder, delusional ideas involve circumstances that could occur in reality although they are unlikely (for example, the family that lives next to the patient is planning to kill him). Sometimes, delusional ideas are considered "odd" (for example, the sense of being controlled by an external force or have thoughts introduced into his head) and this type may be more common in schizophrenia. A cultural or religious belief that is accepted by other members of the community the patient is not considered a delusional idea.
There are several types of delusions. The themes of persecution are common, but besides these there are delusions of an erotic nature, grandiose, jealous or somatic (ie, on the body). People with a delusional disorder or hallucinations commonly have a serious problem humor (as would be the case of a depression). Unlike people with schizophrenia, these people tend not to seem "strange" and not show emotions out of the ordinary.
When hallucinations occur, they may be extensions of the delusional belief. For example, a person who has the delusion that the internal organs are rotting may have hallucinations or olfactory sensations associated with this delusion.
Since people with delusional disorder are aware that their beliefs are unique and not shared by others, usually do not talk about them. If its functioning is impaired, as is usually the direct result of delirium. Thus, the disturbance can only be detected by observing the behavior is a consequence of belief. For example, a person who fears being murdered can leave the job or stay at home with shutters all races, never venturing out.
The risk of developing a delusional disorder, lifelong is less than one in 1,000. Its cause is not known.
Treatment
The treatment of this disorder is a challenge, especially if delusions are long lasting. Antipsychotic drugs may be useful. Since patients usually do not believe they have a mental illness, they may even refuse to psychotherapy. However, the support, reassurance and an indication of the difference between reality and the symptoms may be helpful if the person is willing to meet with a therapist. It may also be useful family education on how best to meet the needs of the person.
Prevention
There is no known way to prevent this disease.