The diagnosis of a psychosis is made in collaboration between the person afflicted, the family and the therapist or doctor. If the occurrence of psychotic symptoms is confirmed, the doctor as far as possible makes a custom-fit diagnosis. However, it is important to understand that the clinical picture frequently changes above all in the first twelve to 24 months, in which around 40% of the persons afflicted are given a different diagnosis. Many persons afflicted with a psychosis have received very many different diagnoses in the course of their disorder, which can lead to great uncertainty but also to treatment errors. For this reason, knowledge of one's own diagnosis is important for dealing actively with the disorder!
The following table gives you an overview of the most important differential diagnoses.
Delirium: Delirium occurs for example as a withdrawal symptom in the medicine / drug / alcohol or other substance addictions or as the consequence of a brain injury.
Metabolic disorders: A disorder of the thymus glands e.g. can cause psychosis-related situations; similarly also other metabolic disorders.
Substance-induced psychoses: The psychosis occurs as a consequence of the consumption of psychotropic substances, e.g. LSD or cannabis etc.
Degenerative disorders: e.g. in the context of multiple sclerosis, psychosis-related situations can occur.
IIntracerebral space occupying lesions: Brain tumours can e.g. cause psychotic symptoms.
Neurological disorders: Also disorders such as epilepsy or morbus Parkinson may be accompanied by psychotic symptoms. Infections of the nervous system such as e.g. encephalitis or meningitis can likewise bring on psychotic symptoms.
Infections: Infections of the nervous system such as e.g. encephalitis or meningitis can likewise bring on psychotic symptoms.
Skull – brain – trauma: A skull brain trauma can be accompanied by psychotic symptoms.