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Psychosis
 
What is psychosis?
Psychosis is usually a symptom of a mental disorder. Psychosis means there is a loss of contact with reality.

How does it occur?
The exact cause of psychosis is not known. It may be caused by something physical. This is called organic psychosis. Organic psychosis can be brought on by brain tumors, epilepsy, head injuries, a severe lack of sleep, or infections such as meningitis. Too much or too little of certain brain chemicals called neurotransmitters may lead to psychosis.

Psychosis may also be the result of a mental disorder such as schizophrenia, bipolar disorder, or severe depression. This is called functional psychosis.

Drugs such as marijuana, speed, or LSD can trigger psychosis, as can drug withdrawal from substances such as alcohol.

What are the symptoms?
The main symptoms are:
  • Hallucinations. People may hear voices that no one else can hear, see people or objects that are not there, or feel something that is not there. Hearing voices is usually a sign of functional psychosis. Hallucinations that involve seeing, feeling, smelling, or tasting are more likely to be a sign of organic psychosis.
  • Delusions. People with psychosis have false beliefs or ideas that are not true. For example, they might believe there is a plot against them by powerful people, or that they have special powers no one else has.
  • Changed feelings. People may feel strange and cut off from the world, with everything moving in slow motion. Mood swings are common, so they may feel very excited or depressed. Or people may feel less emotion or show less emotion to those around them.
  • Changed behavior. People with psychosis behave differently than the way they usually do. They may be very active, or just sit around all day. They may get angry without apparent cause.
  • Disorganized thinking. Everyday thoughts become confused. Sentences don't make sense. A person may have trouble concentrating, following a conversation or remembering things. Thoughts seem to speed up or slow down.

How is it diagnosed?
A health care provider will ask about symptoms and examine you. He or she will make sure that a medical problem or mind-altering drugs, such as LSD or cocaine, are not causing the symptoms. Some diseases can cause many of the symptoms. A mental health professional should make the final diagnosis. The diagnosis is made based on a thorough psychiatric interview.

How is it treated?
The treatment of a psychosis depends on the cause. Medicines are usually the most important part of the treatment. Many medicines are available. These medicines can cause some side effects, but you and your health care provider will watch for them closely.

It is very important to take your medicine even when you are feeling well and thinking clearly. Without the medicine, symptoms are very likely to get worse. Work with your health care provider to decide if you can do without medicine.

Psychosis changes the way you relate to others and the way you think about everyday activities. Therefore, you will probably need a therapist or case manager to help you manage your daily needs. Cognitive behavioral therapy (CBT) is a way to help you identify and change thoughts you have that are not realistic. CBT can make you aware of unhealthy ways of thinking. It can also help you learn new thought and behavior patterns. You may need to spend some time in a hospital if you are thinking about hurting yourself or someone else.

For more information, contact the National Alliance for the Mentally Ill at 800-950-6264.




  Disclaimer: This content is reviewed periodically and is subject to change as new health information becomes available. The information provided is intended to be informative and educational and is not a replacement for professional medical evaluation, advice, diagnosis or treatment by a healthcare professional.

  HIA File BHV3352F.HTM Release 9.0/2006. Copyright © 2006 McKesson Corporation and/or one of its subdiaries. All Rights Reserved.


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