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Schizophrenia is a long-term mental health condition that causes a range of different psychological symptoms, including:
Doctors often describe schizophrenia as a psychotic illness. This means sometimes a person may not be able to distinguish their own thoughts and ideas from reality.
Read more about the symptoms of schizophrenia.
The exact cause of schizophrenia is unknown. However, most experts believe the condition is caused by a combination of genetic and environmental factors.
It is thought certain things make you more vulnerable to developing schizophrenia, and certain situations can trigger the condition.
Read more about the causes of schizophrenia.
Schizophrenia is one of the most common serious mental health conditions. About 1 in 100 people will experience schizophrenia in their lifetime, with many continuing to lead normal lives.
Schizophrenia is most often diagnosed between the ages of 15 and 35. Men and women are equally affected.
There is no single test for schizophrenia. It is most often diagnosed after an assessment by a mental health care professional, such as a psychiatrist.
It is important that schizophrenia is diagnosed as early as possible, as the chances of recovery improve the earlier it is treated.
Read more about diagnosing schizophrenia.
Schizophrenia is usually treated with a combination of medication and therapy appropriate to each individual. In most cases, this will be antipsychotic medicines and cognitive behavioural therapy (CBT).
People with schizophrenia will usually receive help from a community mental health team (CMHT), which will offer day-to-day support and treatment.
Many people recover from schizophrenia, although they may have periods when symptoms return (relapses). Support and treatment can help reduce the impact of the condition on your life.
Read more about treating schizophrenia.
If schizophrenia is well managed, it is possible to reduce the chances of severe relapses. This can include:
There are many charities and support groups offering help and advice on living with schizophrenia. Most people find it comforting to talk to others with a similar condition.
Read more about living with schizophrenia.
Changes in thinking and behaviour are the most obvious signs of schizophrenia, but people can experience symptoms in different ways.
The symptoms of schizophrenia are usually classified into one of two categories: positive or negative.
The condition may develop slowly. The first signs of schizophrenia, such as becoming socially withdrawn and unresponsive or experiencing changes in sleeping patterns, can be hard to identify. This is because the first symptoms often develop during adolescence and changes can be mistaken for an adolescent 'phase'.
People often have episodes of schizophrenia, during which their symptoms are particularly severe, followed by periods where they experience few or no positive symptoms. This is known as acute schizophrenia.
If you are experiencing symptoms of schizophrenia, see your doctor as soon as possible. The earlier schizophrenia is treated, the more successful the outcome tends to be.
Read more information about how schizophrenia is diagnosed.
A hallucination is when a person experiences a sensation but there is nothing or nobody there to account for it. A hallucination can involve any of the senses, but the most common is hearing voices.
Hallucinations are very real to the person experiencing them, even though people around them cannot hear the voices or experience the sensations. Research using brain-scanning equipment shows changes in the speech area of the brain in people with schizophrenia when they hear voices. These studies show the experience of hearing voices as a real one, as if the brain mistakes thoughts for real voices.
Some people describe the voices they hear as friendly and pleasant, but more often they are rude, critical, abusive or annoying. The voices might describe activities taking place, discuss the hearer’s thoughts and behaviour, give instructions or talk directly to the person. Voices may come from different places or one place in particular, such as the television.
A delusion is a belief held with complete conviction, even though it is based on a mistaken, strange or unrealistic view. It may affect the way people behave. Delusions can begin suddenly or may develop over weeks or months.
Some people develop a delusional idea to explain a hallucination they are having. For example, if they have heard voices describing their actions, they may have a delusion that someone is monitoring their actions. Someone experiencing a paranoid delusion may believe they are being harassed or persecuted. They may believe they are being chased, followed, watched, plotted against or poisoned, often by a family member or friend.
Some people who experience delusions find different meanings in everyday events or occurrences. They may believe people on TV or in newspaper articles are communicating messages to them alone, or that there are hidden messages in the colours of cars passing in the street.
People experiencing psychosis often have trouble keeping track of their thoughts and conversations. Some people find it hard to concentrate and will drift from one idea to another. They may have trouble reading newspaper articles or watching a TV programme. People sometimes describe their thoughts as ‘misty’ or ‘hazy’ when this is happening to them. Thoughts and speech may become jumbled or confused, making conversation difficult and hard for other people to understand.
Behaviour may become more disorganised and unpredictable, and appearance or dress may seem unusual to others. People with schizophrenia may behave inappropriately or become extremely agitated and shout or swear for no reason.
Some people describe their thoughts as being controlled by someone else, their thoughts are not their own, or that thoughts have been planted in their mind by someone else. Another recognised feeling is that thoughts are disappearing, as though someone is removing them from their mind. Some people feel their body is being taken over and someone else is directing their movements and actions.
The negative symptoms of schizophrenia can often appear several years before somebody experiences their first acute schizophrenic episode. These initial negative symptoms are often referred to as the prodromal period of schizophrenia.
Symptoms during the prodromal period usually appear gradually and slowly get worse. They include becoming more socially withdrawn and experiencing an increasing lack of care about your appearance and personal hygiene.
It can be difficult to tell whether the symptoms are part of the development of schizophrenia or caused by something else. Negative symptoms experienced by people living with schizophrenia include:
The negative symptoms of schizophrenia can often lead to relationship problems with friends and family because they can sometimes be mistaken for deliberate laziness or rudeness.
The exact causes of schizophrenia are unknown, but research suggests that a combination of physical, genetic, psychological and environmental factors can make people more likely to develop the condition.
Current thinking is that some people may be prone to schizophrenia, and a stressful or emotional life event might trigger a psychotic episode. However, it is not known why some people develop symptoms while others do not.
Things that increase the chances of schizophrenia developing include:
Schizophrenia tends to run in families, but no individual gene is responsible. It is more likely different combinations of genes might make people more vulnerable to the condition. However, having these genes does not necessarily mean you will develop schizophrenia.
Evidence the disorder is partly inherited comes from studies of identical twins brought up separately. They were compared with non-identical twins raised separately and the general public. For identical twins raised separately, if one twin develops schizophrenia, the other twin has a one in two chance of developing it. In non-identical twins, who share only half of each other's genetic make-up, when one twin develops schizophrenia, the other twin has a one in seven chance of developing the condition.
While this is higher than in the general population (where the chance is about one in a 100), it suggests genes are not the only factor influencing the development of schizophrenia.
Many studies of people with schizophrenia have shown there are subtle differences in the structure of their brains or small changes in the distribution or number of brain cells. These changes are not seen in everyone with schizophrenia and can occur in people who do not have a mental illness. They suggest schizophrenia may partly be a disorder of the brain.
These are chemicals that carry messages between brain cells. There is a connection between neurotransmitters and schizophrenia because drugs that alter the levels of neurotransmitters in the brain are known to relieve some of the symptoms of schizophrenia.
Research suggests schizophrenia may be caused by a change in the level of two neurotransmitters, dopamine and serotonin. Some studies indicate an imbalance between the two may be the basis of the problem. Others have found a change in the body’s sensitivity to the neurotransmitters is part of the cause of schizophrenia.
Although the effect of pregnancy and birth complications is very small, research has shown the following conditions may make a person more likely to develop schizophrenia in later life:
Triggers are things that can cause schizophrenia to develop in people who are at risk. These include:
The main psychological triggers of schizophrenia are stressful life events, such as a bereavement, losing your job or home, a divorce or the end of a relationship, or physical, sexual, emotional or racial abuse. These kinds of experiences, though stressful, do not cause schizophrenia, but can trigger its development in someone already vulnerable to it.
Drugs do not directly cause schizophrenia, but studies have shown drug misuse increases the risk of developing schizophrenia or a similar illness.
Certain drugs, particularly cannabis, cocaine, LSD or amphetamines, may trigger some symptoms of schizophrenia, especially in people who are susceptible. Using amphetamines or cocaine can lead to psychosis and can cause a relapse in people recovering from an earlier episode.
Three major studies have shown teenagers under 15 who use cannabis regularly, especially ‘skunk’ and other more potent forms of the drug, are up to four times more likely to develop schizophrenia by the age of 26.
There is no single test for schizophrenia. The condition is usually diagnosed after assessment by a specialist in mental health.
If you are concerned you may be developing symptoms of schizophrenia, see your doctor as soon as possible. The earlier schizophrenia is treated, the more successful the outcome tends to be.
Your doctor will ask about your symptoms and check they are not the result of other causes, such as recreational drug use.
If a diagnosis of schizophrenia is suspected, your doctor will probably refer you to your local community mental health team (CMHT).
CMHTs are made up of different mental health professionals who support people with complex mental health conditions.
A member of the CMHT team, usually a psychologist or psychiatrist, will carry out a more detailed assessment of your symptoms. They will also want to know your personal history and current circumstances.
To make a diagnosis, most mental healthcare professionals use a 'diagnostic checklist', where the presence of certain symptoms and signs indicate a person has schizophrenia.
Schizophrenia can usually be diagnosed if:
Sometimes, it might not be clear whether someone has schizophrenia. If you have other symptoms at the same time, a psychiatrist may have reason to believe you have a related mental illness.
There are several related mental illnesses similar to schizophrenia. Your psychiatrist will ask how your illness has affected you so they can confidently confirm you have schizophrenia and not another mental illness, such as:
Due to their delusional thought patterns, people with schizophrenia may be reluctant to visit their doctor if they believe there is nothing wrong with them.
It is likely someone who has had acute schizophrenic episodes in the past will have been assigned a care co-ordinator. If this is the case, contact the person's care co-ordinator to express your concerns.
If someone is having an acute schizophrenic episode for the first time, it may be necessary for a friend, relative or other loved one to persuade them to visit their doctor. In the case of a rapidly worsening schizophrenic episode, you may need to go to the accident and emergency department where a duty psychiatrist will be available.
If a person who is having an acute schizophrenic episode refuses to seek help and it is believed they present a risk to themselves or others, their nearest relative can request a mental health assessment is carried out.
If you (or a friend or relative) are diagnosed with schizophrenia, you may feel anxious about what will happen. You may be worried about the stigma attached to the condition, or feel frightened and withdrawn. It is important to remember that a diagnosis can be a positive step towards getting good, straightforward information about the illness and the kinds of treatment and services available.
Most people with schizophrenia are treated by community mental health teams (CMHTs). The goal of the CMHT is to provide day-to-day support and treatment while ensuring you have as much independence as possible.
A CMHT can be made up of and provide access to:
People with complex mental health conditions, such as schizophrenia, are usually entered into a treatment process known as a care programme approach (CPA). A CPA is essentially a way of ensuring you receive the right treatment for your needs.
There are four stages to a CPA.
Not everyone uses the CPA. Some people may be cared for by their doctor and others may be under the care of a specialist.
You will work together with your healthcare team to develop a care plan. Your care co-ordinator will be responsible for making sure all members of your healthcare team, including your doctor, have a copy of your care plan. The care plan may involve an advance statement or crisis plan, which can be followed in an emergency.
People who have serious psychotic symptoms as a result of an acute schizophrenic episode may require a more intensive level of care than a CMHT can provide.
These episodes are usually dealt with by antipsychotic medication (see below) and special care.
One treatment option is to contact a crisis resolution team (CRT). CRTs treat people with serious mental health conditions who are currently experiencing an acute and severe psychiatric crisis. Without the involvement of the CRT, these people would require treatment in hospital.
The CRT will aim to treat a person in the least restrictive environment possible, ideally in or near the person's home. This can be in your own home, in a dedicated crisis residential home or hostel, or in a day care centre.
CRTs are also responsible for planning aftercare once the crisis has passed to prevent a further crisis from occurring.
Your care co-ordinator should be able to provide you and your friends or family with contact information in the event of a crisis.
More serious, acute schizophrenic episodes may require admission to a psychiatric ward at a hospital or clinic. You can admit yourself voluntarily to hospital if your psychiatrist agrees it is necessary.
People can also be compulsorily detained at a hospital under the Mental Health Act (2007). However, this is rare. It is only possible for someone to be compulsorily detained at a hospital if they have a severe mental disorder, such as schizophrenia, and if detention is necessary:
People with schizophrenia who are compulsorily detained may need to be kept in locked wards.
All people being treated in hospital will stay only as long as is absolutely necessary to receive appropriate treatment and arrange aftercare.
An independent panel will regularly review your case and your progress. Once they feel you are no longer a danger to yourself and others, you will be discharged from hospital. However, your care team may recommend you remain in hospital voluntarily.
If it is felt there is a significant risk of future acute schizophrenic episodes occurring, you may want to write an advance statement.
An advance statement is a series of written instructions about what you would like your family or friends to do in case you experience another acute schizophrenic episode. You may also want to include contact details for your care co-ordinator.
Want to know more?
Antipsychotics are usually recommended as the initial treatment for the symptoms of an acute schizophrenic episode. Antipsychotics work by blocking the effect of the chemical dopamine on the brain.
Antipsychotics can usually reduce feelings of anxiety or aggression within a few hours of use, but may take several days or weeks to reduce other symptoms, such as hallucinations or delusional thoughts.
Antipsychotics can be taken orally (as a pill) or given as an injection (known as a 'depot'). Several 'slow release' antipsychotics are available. These require you to have one injection every two to four weeks.
You may only need antipsychotics until your acute schizophrenic episode has passed. However, most people take medication for one or two years after their first psychotic episode to prevent further acute schizophrenic episodes occurring and for longer if the illness is recurrent.
There are two main types of antipsychotics:
Atypical antipsychotics are usually recommended as a first choice because of the sorts of side effects associated with their use. However, they are not suitable or effective for everyone.
Both typical and atypical antipsychotics can cause side effects, although not everyone will experience them and their severity will differ from person to person.
The side effects of typical antipsychotics include:
Side effects of both typical and atypical antipsychotics include:
Tell your care co-ordinator or doctor if your side effects become severe. There may be an alternative antipsychotic you can take or additional medicines which will help you deal with the side effects.
Do not stop taking your antipsychotics without first consulting your care co-ordinator, psychiatrist or doctor. If you do, you could have a relapse of symptoms.
See our [medicines guide for schizophrenia].
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Psychological treatment can help people with schizophrenia cope better with the symptoms of hallucinations or delusions.
They can also help treat some of the negative symptoms of schizophrenia, such as apathy or a lack of enjoyment.
Common psychological treatments include:
Cognitive behavioural therapy (CBT) aims to help you identify the thinking patterns that are causing you to have unwanted feelings and behaviour, and learn to replace this thinking with more realistic and useful thoughts.
For example, you may be taught to recognise examples of delusional thinking in yourself. You may then receive help and advice about how to avoid acting on these thoughts.
Most people will require 8-20 sessions of CBT over the space of 6-12 months. CBT sessions usually last for about an hour.
Your doctor or care co-ordinator should be able to arrange a referral to a CBT therapist.
Many people with schizophrenia rely on family members for their care and support. While most family members are happy to help, caring for somebody with schizophrenia can place a strain on any family.
Family therapy is a way of helping you and your family cope better with your condition.
Family therapy involves a series of informal meetings over a period of around six months. Meetings may include:
If you think you and your family could benefit from family therapy, speak to your care co-ordinator or doctor.
Arts therapies are designed to promote creative expression. Working with an arts therapist in a small group or individually can allow you to express your experiences with schizophrenia. Some people find expressing things in a non-verbal way through the arts can provide a new experience of schizophrenia and help them develop new ways of relating to others.
Arts therapies have been shown to alleviate the negative symptoms of schizophrenia in some people.
Stuart was diagnosed with paranoid schizophrenia when he was 31.
After a difficult period of coping with depression, anxiety and paranoia, Stuart feels his illness is under control, thanks to a very effective antipsychotic drug. His goal is to climb Mount Everest, having already conquered base camp.
"In August 1991, I was on holiday in Moscow taking part in a march against communism. It was a very stressful time as hardline communists were attempting a coup against Mikhail Gorbachev, then president of the Soviet Union.
"That night, in my hotel room, I got a phone call at about 2am. A very angry Russian man was shouting and swearing down the line at me, asking why I was involving myself in their business. I put the phone down and my heart started to pound. I began to get quite scared and paranoid.
"About eight days later, I arrived back in London. I felt I was being followed by the KGB. From there, fears of persecution and depression gradually built up. I got so stressed. About a month after returning from Moscow, I was unable to work and my doctor signed me off.
"I remember having my first psychotic attack, which was absolutely terrifying. I think it was brought on by sheer stress and anxiety. I was lying on my bed and I suddenly felt pressure on the top of my head, and found myself in total darkness. It was like I’d been sucked into my own mind and had lost all sense of reality. I screamed out loud, then suddenly found myself back in my bedroom again with this really strange sensation round my head.
"I didn’t have a clue what was going on. I decided to move away from London to Devon, to try to escape persecution from the KGB. I thought nobody would find me there.
"In 1996, I moved to Dorchester. I saw my local doctor and was referred immediately to the psychiatric team, where I was diagnosed with schizophrenia. The diagnosis was a relief. Yet all I knew about schizophrenia was what I’d read in the papers, that it was related to violence.
"I did some research and got in touch with the mental health charity Rethink. I met one of Rethink's volunteers, Paul. He is the kindest man I’ve ever met in my life. I could tell Paul my deepest thoughts and fears and completely trust him. He never judged me at all.
"After doctors gave me various medicines, some with unpleasant side effects, I was prescribed a drug that worked for me. It was one of the newer, atypical antipsychotics. I’m now on an extremely low dose of this drug and I don’t really have any symptoms of schizophrenia anymore. I feel it’s completely under control.
"In 2003, I won a Winston Churchill Memorial Trust travel fellowship. I went to Everest for the first time and trekked to base camp. It was symbolic of my own journey with schizophrenia and conquering my own mountains. I want to climb Everest in the future. I think I can do it. I want to do something to inspire people and to show people that recovery is possible."
Delusions and voices have been a daily feature of Richard’s life for more than ten years. Despite this, he recently completed a master's degree in broadcast journalism and successfully runs his own business.
"When I was about 21, I had a bad experience with hallucinogenic mushrooms, after which I started having delusions and hallucinations. Voices in my head would say unkind things and I had suspicious thoughts that felt like they came from outside me. I was diagnosed with paranoid schizophrenia shortly afterwards and the thoughts and voices have been with me ever since.
"A lot of the time the thoughts and voices are like another layer of interaction with people and the world. It's as if there are two coexisting realities. If I'm listening to the radio, for instance, the rational part of me knows that the programme is being transmitted to lots of listeners and that it is a one-way form of communication. My delusional thinking, however, makes me believe that the radio can project what I say out loud to the people making the show and all the listeners.
"My delusions will also make me think that a lot of the discussion in the programme has a special meaning or relevance to me. For example, the host of a show might mention that they are going to the dentist soon. If I happen to have a dental appointment in the near future, then it can seem like the presenter has just dropped that into the conversation as a hidden message. They aren’t going to the dentist, but they want me to understand that they know I will be.
"In truth, when something like that happens it is, of course, just a coincidence, but there's a part of my thinking for which it becomes another reality.
"I've come to accept that they are an ongoing part of my life, but there are times when it is hard to deal with. Out shopping, it sometimes seems people are looking at me in a sinister way because they don’t like something about me. The truth is they're probably noticing my clothes or are just looking in my direction.
"Nonetheless it can get me down, to the point where I won’t go out of the house. In the past it has made me feel depressed, even suicidal. At times like that, it helps to have friends around who can either tell me to stop thinking rubbish or, if needs be, help me work through my delusions and do some reality checking.
"I had some cognitive behavioural therapy when I first got these symptoms. It was helpful because it gave me another way to work through negative emotions and keep on top of things that could be disabling. I also take medication and have decided that I always will.
"The media consultancy company I've just set up keeps me busy. That’s important too, because when I have lots of work on, it helps me keep focused, rather than drift off with my delusions."
As well as monitoring your mental health, your healthcare team and doctor should monitor your physical health. A healthy lifestyle, including a balanced diet with lots of fruits and vegetables and regular exercise, is good for you and can reduce your risk of developing cardiovascular disease or diabetes.
Avoid too much stress and get a proper amount of sleep.
You should have a check-up at least once a year to monitor your risk of developing cardiovascular disease or diabetes. This will include recording your weight, checking your blood pressure and any appropriate blood tests.
Rates of smoking in people with schizophrenia are three times higher than in the general population. If you are a smoker, you are at a higher risk of developing cancer, heart disease and stroke.
Stopping smoking has both short- and long-term health benefits.
In the course of your treatment for schizophrenia, you will be involved with many different services. Some are accessed through referral from your doctor, others through your local authority. These services may include the following:
Avoid too much stress, including work-related stress. If you are employed, you may be able to work shorter hours or in a more flexible way.
Several organisations provide support, training and advice for people with schizophrenia who wish to continue working. Your community mental health team is a good first point of contact to find out what services and support are available for you. Mental health charities such as Mind or Rethink are also an excellent source of information on training and employment.
If you are unable to work as a result of your mental illness, you are entitled to financial support, such as Incapacity Benefit.
Other places that offer support to people with schizophrenia and other mental illnesses include:
Even if you do not have a job or are unable to work, it is still important to go out and do everyday things and provide a structure to your week. Many people regularly go to a day hospital, day centre or community mental health centre. These offer a range of activities that enable you to get active again and spend some time in the company of other people.
These provide training to help you develop your work skills and support you back into work. They often have contacts with local employers.
This could be a bedsit or flat where there is someone around who is trained to support you and help you deal with day-to-day problems.
Friends, relatives and partners have a vital role in helping people with schizophrenia recover and make a relapse less likely.
It is very important not to blame the person with schizophrenia or tell them to “pull themselves together”, or to blame other people. When dealing with a friend or loved one’s mental illness, it is important to stay positive and supportive.
As well as supporting the person with schizophrenia, you may want to get support to cope with your own feelings. Several voluntary organisations provide help and support for carers.
Friends and family should try to understand what schizophrenia is, how it affects people, and how best they can help. They can provide emotional and practical support, and can encourage people to seek appropriate support and treatment. As part of the treatment, you may be offered family therapy. This can provide information and support for the person with schizophrenia and their family.
Friends and family can play a major role by monitoring the person’s mental state, watching out for any signs of relapse, encouraging them to take their medication and attend medical appointments.
If you are the nearest relative of a person who has schizophrenia, you have certain rights that can be used to protect the patient's interests. These include requesting that the local social services authority ask an approved mental health professional to consider whether the person with schizophrenia should be detained in hospital.
Many people with schizophrenia experience periods of depression. Do not ignore these symptoms. If depression is not treated, it can worsen and lead to suicidal thoughts.
Studies have shown that people with schizophrenia have a higher chance of commiting suicide.
If you have been feeling particularly down over the last month and no longer take pleasure in the things you used to enjoy, you may be depressed. See your doctor for advice and treatment.
Immediately report any suicidal thoughts to your doctor or care co-ordinator.
The warning signs that people with depression and schizophrenia may be considering suicide include:
If you see any of these warning signs:
If you feel that there is an immediate danger of the person committing suicide, stay with them or have someone else stay with them and remove all available means of suicide, such as sharp objects and medication.
Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.