Home Diseases & Conditions Types and Causes of Schizophrenia

Types and Causes of Schizophrenia

Schizophrenia is what the layman calls “Madness” or “Psychosis”.

Schizophrenia usually has an impact on how you think and deal with your daily life. Hallucinations, delusions, disorganized thinking, and a lack of motivation for daily activities are all symptoms of schizophrenia.

Schizophrenia affects about one out of every 100 persons. It commonly begins in early adulthood. The prodromal phase refers to the early stages of the sickness. Your sleep, emotions, motivation, communication, and capacity to think clearly may all alter throughout this time.Schizophrenia


There are several types of schizophrenia. They include:

Paranoid schizophrenia

This is the most common type of schizophrenia. It may develop later in life than in other forms. Symptoms include hallucinations and/or delusions, but your speech and emotions may not be affected.

Hebephrenic schizophrenia

Also known as ‘disorganized schizophrenia’, this type of schizophrenia typically develops when you’re 15-25 years old. Symptoms include disorganized behaviors and thoughts, alongside short-lasting delusions and hallucinations. You may have disorganized speech patterns and others may find it difficult to understand you.

People living with disorganized schizophrenia often show little or no emotions in their facial expressions, voice tone, or mannerisms.

Catatonic schizophrenia

This is the rarest schizophrenia diagnosis, characterized by unusual, limited, and sudden movements. You may often switch between being very active or very still. You may not talk much, and you may mimic others’ speech and movement.

Undifferentiated schizophrenia

Your diagnosis may have some signs of paranoid, hebephrenic, or catatonic schizophrenia, but it doesn’t obviously fit into one of these types alone.

Residual schizophrenia

You may be diagnosed with residual schizophrenia if you have a history of psychosis, but only experience the negative symptoms (such as slow movement, poor memory, lack of concentration, and poor hygiene).

Simple schizophrenia

Simple schizophrenia is rarely diagnosed in the UK. Negative symptoms (such as slow movement, poor memory, lack of concentration, and poor hygiene) are most prominent early and worsen, while positive symptoms (such as hallucinations, delusions, disorganized thinking) are rarely experienced.

Cenesthopathic schizophrenia

People with cenesthopathic schizophrenia experience unusual bodily sensations.

Unspecified schizophrenia

Symptoms meet the general conditions for a diagnosis but do not fit into any of the above categories.

Causes of Schizophrenia

Although the exact causation of schizophrenia is unknown, it is thought to be caused by a combination of the following factors:

  • Birth complications
  • Genetics
  • Brain chemistry

Following a traumatic incident, such as the death of a loved one or the loss of a career, some people acquire schizophrenia.

Psychosis and schizophrenia symptoms can be triggered by experiences such as growing up in a town or city, stressful life events, and relocating to a new town or country.

There’s also a substantial correlation between heavy cannabis use and the onset of schizophrenia.

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