Schizophrenia is a chronic, severe, disabling brain disorder. It interferes with the way a person interprets reality. People with schizophrenia may:

  • Hear voices or see things that others do not
  • Become paranoid that people are plotting against them
  • Experience cognitive deficits
  • Withdraw socially

These and other symptoms make it difficult for people with schizophrenia to have positive relationships with others.

Regions of the Brain
Colored brain segments
Schizophrenia affects many different areas of the brain causing a wide range of behavioral, emotional, and intellectual symptoms.
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The cause of schizophrenia is unknown but it is associated with problems in brain structure and chemistry. There may be some genetic role.

Schizophrenia does not develop because of one factor. You may have a gene that increases your chance of schizophrenia, but you may not develop the disease based on your environment. Environment means any outside factor like stress or infection.