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Psychotic Disorders
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Mental Health Behavior

Psychotic Disorders

Psychotic disorders are severe mental conditions that cause abnormal thinking and perceptions, leading individuals to lose touch with reality.

Overview

Psychotic disorders are characterized by two main symptoms: delusions and hallucinations. Delusions are false beliefs, such as the conviction that someone is plotting against you or that the television is sending you secret messages. Hallucinations are false perceptions, such as hearing, seeing, or feeling things that are not there.

Types and Causes

Schizophrenia is a primary type of psychotic disorder, though psychotic symptoms can also occur in people with bipolar disorder. Other potential causes of psychosis include:

  • Alcohol and certain drugs
  • Brain tumors
  • Brain infections
  • Stroke

Treatment

Treatment is determined by the underlying cause of the psychosis. It may involve medication to control symptoms and talk therapy. In serious cases where an individual may be a danger to themselves or others, hospitalization is an option.

Frequently Asked Questions

Early signs, often called the prodromal phase, can include social withdrawal, a decline in academic or work performance, and increased sensitivity to stress. You may notice changes in sleep patterns, such as sleeping too much or too little, and a loss of interest in previously enjoyed activities. Subtle changes in thinking, such as vague or illogical speech, suspiciousness, or unusual beliefs, may also appear. These signs can be subtle and easily mistaken for depression or typical adolescent behavior, so monitoring for a cluster of these changes over several weeks is crucial for early intervention.
While extreme stress and severe sleep deprivation can trigger psychotic-like symptoms in anyone, they are rarely the sole cause of a primary psychotic disorder like schizophrenia. However, in individuals with a genetic vulnerability, significant stress or sleep loss can act as a precipitating factor that triggers the onset of an episode. Substance use, particularly cannabis or stimulants, combined with stress, significantly increases the risk. If symptoms appear after a period of extreme stress but resolve completely with rest and stress management, a clinician may diagnose a brief psychotic disorder rather than a chronic condition.
ntipsychotic medications typically take two to four weeks to begin showing noticeable improvements in positive symptoms like hallucinations and delusions. However, achieving full stabilization may take several months. It is important to continue taking the medication as prescribed even if symptoms improve quickly, as stopping abruptly can lead to a rapid relapse. Side effects may appear before the therapeutic benefits are felt, so close monitoring by a psychiatrist during the first few weeks is essential to adjust dosages and manage adverse reactions.
The primary distinction lies in the presence of psychotic symptoms. A severe mood disorder, such as bipolar disorder, is defined by episodes of mania and depression. While some individuals with bipolar disorder experience psychosis (such as hearing voices or having delusions) during manic or depressive episodes, the psychosis is secondary to the mood disturbance. In a primary psychotic disorder like schizophrenia, the psychotic symptoms are the core feature and may persist even when mood is stable. Treatment approaches differ slightly, with mood stabilizers being central for bipolar disorder, whereas antipsychotics are the first-line treatment for schizophrenia.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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