Quick answer

What is schizophrenia?

Schizophrenia is a serious mental illness affecting how a person thinks, feels and behaves — causing psychosis (hallucinations, delusions, disorganised thinking). It usually starts in late teens or twenties. It is not split personality — a common myth. With antipsychotic medication, psychological therapy and community support, many people manage symptoms and live fulfilling lives. Seek urgent help for suicidal thoughts, not eating or drinking, or behaviour putting self or others at risk.

Schizophrenia — understanding psychosis

Schizophrenia is a severe mental illness characterised by psychosis — experiences outside shared reality — plus negative and cognitive symptoms affecting daily function.

~1% lifetime prevalence — equal men and women — men often earlier onset.

Symptoms

Positive (added experiences)

  • Hallucinations — hearing voices most common — may comment, command, or converse
  • Delusions — fixed false beliefs — persecution, reference, grandeur, control
  • Disorganised thinking — speech jumps, neologisms
  • Disorganised behaviour — unpredictable actions

Negative (loss of function)

  • Flat affect — reduced facial expression
  • Avolition — lack of motivation
  • Anhedonia — no pleasure
  • Social withdrawal

Cognitive

  • Working memory, attention, processing speed — often overlooked — affect employment

Prodrome and first episode

Months before psychosis:

  • Withdrawal, school/work decline
  • Odd beliefs, suspiciousness
  • Sleep disturbance

First episode psychosis (FEP) — Early Intervention services — critical window — better outcomes with prompt antipsychotics + therapy

Causes

Multifactorial:

  • Genetic — ~10% risk if first-degree relative
  • Dopamine dysregulation — antipsychotic rationale
  • Neurodevelopmental — prenatal infection, complications
  • Cannabis — especially high THC in adolescence — increases risk
  • NOT bad parenting or weak character

Treatment

Antipsychotics:

  • First episode — low dose, monitor metabolic side effects
  • Clozapine — after 2 failed trials — gold standard for resistant psychosis — blood monitoring

Psychological:

  • CBTp — CBT for psychosis
  • Family intervention — reduce expressed emotion
  • Relapse prevention — early signs diary

Social:

  • Supported employment/education
  • CPA care programme approach

Living with schizophrenia

Recovery model — symptoms managed, meaningful life possible

Side effects matter:

  • Weight gain, metabolic syndrome — annual health checks
  • Tardive dyskinesia — long-term movement disorder — discuss with psychiatrist

Advance statements — preferences when unwell

Crisis

Phone 999 if immediate danger

Crisis team — GP or 111 referral

Sectioning (Mental Health Act) — only when necessary — least restrictive care preferred

Schizophrenia is treatable, not a life sentence — Early Intervention + adherence change trajectory.

Common questions

What are the symptoms of schizophrenia?
Psychosis — hallucinations (commonly auditory), delusions (paranoid or bizarre beliefs), thought disorder — speech hard to follow. Negative symptoms — reduced expression, apathy, social isolation. Cognitive difficulties — concentration, memory. Symptoms vary between people and over time — not everyone has all features.
Is schizophrenia the same as split personality?
No — completely different condition. Schizophrenia involves psychosis — losing touch with shared reality. Dissociative identity disorder (historically called split personality) is rare and distinct. The name schizophrenia means split mind in Greek — refers to fragmented thinking, not multiple personalities.
How is schizophrenia treated on the NHS?
Antipsychotic medication — risperidone, olanzapine, aripiprazole, clozapine for treatment-resistant cases. Psychological therapies — CBT for psychosis, family intervention. Early Intervention in Psychosis teams for first episode — up to 3 years. Community mental health team for ongoing care. Hospital admission if acutely unwell.
Can people with schizophrenia work and have relationships?
Yes — many do with stable treatment and support. Outcomes vary — some recover well after first episode, others have relapses. Stigma and side effects of medication can be barriers — vocational support and peer groups help. Realistic goals with care plan.
What triggers a relapse in schizophrenia?
Stopping antipsychotics without medical advice is commonest cause. Stress, sleep loss, substance use (especially cannabis and stimulants), and major life events. Relapse prevention plans — recognise early warning signs, contact care coordinator promptly.

Sources