Psychosis
A loss of contact with reality involving hallucinations or delusions
Quick Facts
- Type: Psychiatric / neurological symptom
- Core features: Hallucinations, delusions, disorganized thinking
- Common causes: Mental illness, substances, medical conditions
- Seek urgent care: Risk of harm, severe agitation, or confusion
Overview
Psychosis is a state in which a person loses contact with reality. Its main features are hallucinations (sensing things that are not there), delusions (strongly held false beliefs), and disorganized thinking or speech. Psychosis is a symptom, not a single illness, and it can occur in mental health conditions, with certain medical problems, or as a result of substances and medications.
An episode of psychosis can be frightening and confusing for the person experiencing it and for those around them. Early recognition and treatment improve outcomes, so it is important to seek help when warning signs appear. Because psychosis can sometimes accompany a serious medical emergency or carry a risk of harm, it always warrants prompt professional assessment.
The experience exists on a spectrum, from mild and fleeting symptoms to a full episode in which a person cannot tell what is real. Warning signs often appear gradually beforehand, such as social withdrawal, suspiciousness, unusual beliefs, or a drop in functioning at work or school, and recognizing them early can lead to faster help.
Common Causes
Psychosis can arise from psychiatric, medical, and substance-related causes:
- Psychiatric conditions: Schizophrenia, schizoaffective disorder, and severe mood disorders such as bipolar disorder or severe depression.
- Substances: Recreational drugs, alcohol withdrawal, and some medications.
- Medical conditions: Brain infections like encephalitis, severe metabolic disturbances, and certain autoimmune conditions.
- Delirium: An acute confusional state from illness or medication (delirium).
- Neurological conditions: Some forms of dementia, brain tumors, and seizures.
A first episode of psychosis, or psychosis with fever, confusion, or new neurological symptoms, needs urgent medical evaluation to rule out a serious underlying cause.
Associated Symptoms
Psychosis often comes with a cluster of symptoms:
- Hallucinations, most often hearing voices
- Delusions, such as feeling watched, persecuted, or having special powers
- Disorganized or jumbled speech and thinking
- Withdrawal from others and personality changes
- Confusion, especially with a medical cause
- Agitation, fear, or, in some cases, thoughts of self-harm
Severe agitation, confusion, fever, or any risk of harm to self or others makes psychosis an emergency.
People experiencing psychosis often lack full awareness that their experiences are not real, which can make the situation frightening and confusing for them. This is one reason a calm, non-judgmental approach from those around them is so important.
Diagnosis & Evaluation
Evaluation aims to identify the cause and rule out medical emergencies:
- History and mental state exam: Assessing symptoms, their onset, substance use, and mental health history, often with input from family.
- Physical and neurological exam: Checking for medical causes.
- Blood and urine tests: Looking for infection, metabolic problems, and substances.
- Brain imaging: CT or MRI when a neurological cause is suspected.
- Specialist psychiatric assessment: To diagnose and plan treatment.
A careful timeline is valuable, including when symptoms began, any recent drug or alcohol use, new medications, and physical illness. This information helps distinguish a primary psychiatric cause from psychosis driven by a medical problem or substance.
Treatment & Management
Treatment combines addressing the cause with supporting recovery:
- Treating medical causes: Addressing infection, metabolic problems, or medication effects, and treating delirium.
- Antipsychotic medication: Used to reduce hallucinations, delusions, and agitation under specialist care.
- Psychological support and therapy: Helping the person understand and manage their experiences.
- Substance treatment: Safe management of drug or alcohol-related psychosis.
- Early intervention services: Coordinated care for a first episode, which improves long-term outcomes.
Psychosis should always be managed by professionals, and early treatment generally leads to better recovery.
Recovery is often a gradual process, and ongoing support from family, peers, and mental health services plays an important role. Maintaining a stable routine, good sleep, and avoiding alcohol and recreational drugs all support treatment and reduce the chance of relapse.
When to See a Doctor
Seek medical help promptly for any new or worsening psychotic symptoms, as early treatment improves outcomes. Seek emergency care immediately if psychosis comes with:
- Thoughts of harming oneself or others
- Severe agitation or aggression
- New confusion, drowsiness, or fever
- Severe headache or a stiff neck
- Seizures or new weakness
If you or someone else is in immediate danger, call emergency services or a mental health crisis line right away.
Frequently Asked Questions
What does psychosis mean?
Psychosis means losing contact with reality. Its main features are hallucinations such as hearing voices, delusions or false beliefs, and disorganized thinking. It is a symptom that can occur in several conditions rather than a single illness.
What causes psychosis?
Causes include psychiatric conditions like schizophrenia and severe mood disorders, substances and alcohol withdrawal, medical problems such as brain infections, delirium, and some neurological conditions. A first episode needs prompt evaluation to find the cause.
Is psychosis a medical emergency?
It can be. Seek emergency care if there is any risk of harm to self or others, severe agitation, or psychosis with fever, confusion, severe headache, or new neurological symptoms, which can signal a serious medical cause.
Can psychosis be treated?
Yes. Treatment depends on the cause and often includes antipsychotic medication, therapy, and addressing any underlying medical or substance problem. Early treatment generally leads to better recovery, so getting help quickly matters.
How can I help someone experiencing psychosis?
Stay calm and non-confrontational, avoid arguing about their beliefs, keep the environment safe, and help them get professional assessment. If there is any risk of harm or signs of a medical emergency, call emergency services or a crisis line immediately.
References
- National Institute of Mental Health (NIMH). Understanding psychosis.
- Mayo Clinic. Psychosis and schizophrenia.
- MedlinePlus, U.S. National Library of Medicine. Psychosis.
- Substance Abuse and Mental Health Services Administration (SAMHSA). Early intervention for psychosis.