Theme: iWiki Log in Register

Diff: Schizophrenia

Comparing revision #2 (2024-03-03 00:34:26) with revision #3 (2026-06-22 09:00:58).

Old	New
Schizophrenia is a chronic and severe mental disorder that affects how a person thinks, feels, and behaves. It is characterised by a combination of psychotic symptoms, such as hallucinations, delusions, disorganised thinking, and abnormal behaviours. This wiki page provides an overview of schizophrenia, including its symptoms, causes, diagnosis, treatment, and impact on individuals and society.
	'''Schizophrenia''' is a long-term mental health condition involving psychosis, altered perception, changes in thought, and difficulties with motivation, emotion, or social functioning. Doctors often describe schizophrenia as a type of psychosis because a person may at times have difficulty distinguishing their own thoughts or perceptions from reality.

	Schizophrenia is commonly misunderstood. It does not mean a split personality, and it does not usually make someone violent. Its effects vary widely. Some people have one or a few episodes and recover well, while others need long-term support.

== Symptoms ==	== Symptoms ==
The symptoms of schizophrenia can vary widely from person to person, but they are typically categorised into three main groups:
	Symptoms are often grouped into positive, negative, and cognitive symptoms. The terms do not mean good or bad. They describe whether an experience is added to normal functioning or whether normal functioning is reduced.

# Positive Symptoms: These symptoms involve a distortion of normal functioning and include hallucinations (perceiving things that are not there), delusions (believing in false and irrational ideas), disorganised thinking and speech, and abnormal motor behaviours.
# Negative Symptoms: Negative symptoms refer to a loss of normal functioning and include a reduction or absence of emotional expression (flat affect), decreased motivation and interest, social withdrawal, and difficulties with speech and communication.
# Cognitive Symptoms: Cognitive symptoms affect thinking processes and include problems with memory, attention, and executive functioning (the ability to plan and organise tasks).
	Positive symptoms can include:

	* Hallucinations, such as hearing voices or seeing things that others do not.
	* Delusions, meaning strongly held beliefs not based in reality.
	* Confused or disorganised thoughts.
	* Speech that becomes hard for others to follow.
	* Agitation, suspiciousness, or unusual behaviour during an acute episode.

	Negative symptoms can include:

	* Loss of motivation.
	* Withdrawal from friends, family, or ordinary activities.
	* Reduced emotional expression.
	* Reduced speech.
	* Poor self-care or difficulty keeping routines.
	* Reduced ability to feel pleasure.

	Cognitive symptoms can include problems with attention, memory, planning, processing speed, and organisation.

	== Early Signs ==
	Early changes may appear gradually before a clear psychotic episode. These can include sleep disturbance, social withdrawal, decline in work or study, unusual suspiciousness, poor concentration, anxiety, depression, or loss of interest.

	These signs are not specific to schizophrenia. They can also appear in stress, depression, trauma, substance misuse, and other mental health conditions. Assessment is therefore based on the whole pattern, duration, risk, and effect on daily life.

== Causes and Risk Factors ==	== Causes and Risk Factors ==
The exact cause of schizophrenia is unknown, but it is believed to involve a combination of genetic, environmental, and neurochemical factors. Some factors that may contribute to the development of schizophrenia include:
	The exact cause of schizophrenia is not known. Most sources describe it as arising from a mixture of genetic vulnerability, brain development, environmental stress, and neurochemical factors.

* Genetics: Having a family history of schizophrenia increases the risk of developing the disorder, suggesting a genetic component.
* Brain Chemistry and Structure: Imbalances in certain neurotransmitters, such as dopamine, may play a role in the development of schizophrenia. Additionally, structural abnormalities in the brain, such as enlarged ventricles, have been observed in some individuals with schizophrenia.
* Environmental Factors: Prenatal exposure to certain viruses or infections, complications during childbirth, and stressful life events may increase the risk of developing schizophrenia.
	Risk factors include:

== Diagnosis and Treatment ==
Diagnosing schizophrenia involves a comprehensive evaluation of the individual's symptoms, medical history, and psychological assessment. There is no specific test to diagnose schizophrenia, so healthcare professionals rely on clinical judgment based on established diagnostic criteria.
	* Family history of schizophrenia or related psychotic disorders.
	* Complications affecting early brain development.
	* Stressful life events in vulnerable people.
	* Drug misuse, especially frequent or high-potency cannabis use in people at risk.
	* Social adversity, trauma, or isolation, although these do not cause the condition by themselves.

Treatment for schizophrenia typically involves a combination of medication, psychotherapy, and psychosocial interventions. Antipsychotic medications are commonly prescribed to help manage symptoms, while psychotherapy, such as cognitive-behavioural therapy (CBT), can assist individuals in coping with their experiences and improving their daily functioning. Psychosocial interventions, such as vocational rehabilitation and support groups, are also important in promoting recovery and helping individuals integrate into society.
	No single factor explains every case.

== Impact on Individuals and Society ==
Schizophrenia can have a profound impact on individuals, affecting various aspects of their lives, including relationships, work, and self-care. It is associated with higher rates of unemployment, homelessness, and social isolation. However, with appropriate treatment and support, many individuals with schizophrenia can lead fulfilling and productive lives.
	== Diagnosis ==
	There is no single blood test or scan that diagnoses schizophrenia. Diagnosis is made after assessment by a mental health professional, usually a psychiatrist, based on symptoms, history, duration, impact, and exclusion of other causes.

In society, schizophrenia poses challenges in terms of stigma and discrimination. Misunderstandings about the disorder can lead to social exclusion and hinder opportunities for individuals with schizophrenia. Education and awareness campaigns are important for reducing stigma and promoting a more compassionate and inclusive society.
	Assessment may include:

	* Discussion with the person about experiences, mood, sleep, safety, functioning, and substance use.
	* Physical health checks and blood tests.
	* Review of medicines and drugs that could cause psychosis.
	* Information from relatives or carers where appropriate and with consent.
	* Risk assessment, including self-harm, neglect, exploitation, or rare risks to others.

	Other possible causes of psychosis include bipolar disorder, severe depression, drug-induced psychosis, delirium, neurological illness, endocrine disease, and some autoimmune or infectious conditions.

	== Treatment ==
	Treatment is usually individualised and combines medicine, psychological therapy, physical-health care, and social support.

	Common elements include:

	* Antipsychotic medicine to reduce hallucinations, delusions, and acute psychosis.
	* Cognitive behavioural therapy for psychosis.
	* Family intervention where relatives or carers are involved.
	* Community mental health team support.
	* Crisis planning and relapse prevention.
	* Help with housing, benefits, employment, education, and daily routines.
	* Treatment for depression, anxiety, trauma, substance misuse, or physical health problems where present.

	NICE guidance for adults focuses on early recognition, treatment, long-term recovery, support for carers, and checking coexisting physical health problems.

	== Recovery and Living With Schizophrenia ==
	Recovery does not always mean symptoms disappear forever. It can mean fewer relapses, better coping strategies, stable relationships, meaningful activity, safer housing, and more independence.

	Relapse prevention often includes recognising early warning signs, taking medicine as agreed, avoiding harmful drug use, reducing stress where possible, and staying connected with care. Side effects of antipsychotic medicine, including weight gain, movement symptoms, sedation, sexual side effects, and metabolic changes, need active monitoring.

	Physical health matters because people with schizophrenia have higher rates of smoking, diabetes, cardiovascular disease, and reduced life expectancy. Good care includes mental and physical health together.

	== Stigma ==
	Stigma can be as damaging as symptoms. People with schizophrenia may be treated as dangerous, unreliable, or incapable, even when they are managing their condition well. Accurate public information matters because the condition is common enough to affect families, workplaces, universities, hospitals, prisons, and community services.

	The most useful description is practical: schizophrenia is a serious but treatable mental health condition that affects perception, thought, emotion, motivation, and daily functioning in different ways.

	== See Also ==
	* [[Psychosis]]
	* [[Mental Health]]
	* [[Depression]]
	* [[Bipolar Disorder]]

	== References ==
	* [https://www.nhs.uk/mental-health/conditions/schizophrenia/overview/ NHS: Schizophrenia overview]
	* [https://www.nhs.uk/mental-health/conditions/schizophrenia/symptoms/ NHS: Symptoms of schizophrenia]
	* [https://www.nhs.uk/mental-health/conditions/schizophrenia/treatment/ NHS: Treatment for schizophrenia]
	* [https://www.nice.org.uk/guidance/cg178 NICE: Psychosis and schizophrenia in adults]
	* [https://www.nhsinform.scot/illnesses-and-conditions/mental-health/schizophrenia/ NHS inform: Schizophrenia]

	[[Category:Medicine]]
	[[Category:Mental Health]]
	[[Category:Psychiatry]]