Although the precise cause of disorganized schizophrenia isn't known, certain factors seem to increase the risk of developing or triggering the condition, including:

  • Having a family history of schizophrenia
  • Exposure to viruses while in the womb
  • Poor nutrition while in the womb
  • Stressful life circumstances
  • Older paternal age
  • Taking psychoactive drugs during adolescence

Signs and symptoms of schizophrenia typically develop between the teenage years and the mid-30s, although disorganized schizophrenia may start earlier.

Dec. 10, 2010