- Effects and Complications
- Can Schizophrenia be Prevented?
- Risk Factors
- Childhood Schizophrenia
- Hearing Voices
- Managing Symptoms
- Movement Disorders
- Schizophrenia and Suicide
- Conventional Antipsychotics
- Atypical Antipsychotics
- Split Personality
- Anxiety and Schizophrenia
- Depression and Schizophrenia
- Bipolar Disorder
- Brief Psychotic Disorder
- Shared Psychotic Disorder
- Schizotypal Personality Disorder
- Schizophreniform Disorder
- Schizoid Personality
- Delusional Disorder
- Substance Abuse
- Schizoaffective Disorder
- Schizophrenia and Self Injury
Schizophrenia Risk Factors
Scientists have been studying schizophrenia for a long time, trying to determine what causes this complex and challenging psychiatric disorder. While a specific cause has not yet been determined, most believe that schizophrenia is caused by a combination of things, including genetics and environmental factors.
With regards to risk factors for developing schizophrenia, a family history of the disorder still ranks highest 1. Although schizophrenia develops in only about 1% of the population, having a parent with schizophrenia increases the risk to 10% 2. The odds increase to 30% to 40% if both parents are schizophrenic 3. Having an identical twin with schizophrenia makes the risk quite high at 40% to 50% 2
There are many environmental factors which have been linked to the development of schizophrenia, although none is considered a “cause” of the disorder. These include, but are not limited to:
- Traumatic or highly stressful events in childhood
- Drug use
- Maternal complications or illnesses during pregnancy
- Malnutrition during pregnancy
- Maternal exposure to the toxoplasmosis parasite 3
- Complications during birth
- Living in the city
- Being born during winter months
- Living in a more developed country
Abnormalities in the brain
Many individuals with schizophrenia have structural or functional anomalies in their brain. These include things such as enlarged ventricles, metabolic differences, and differences in size of certain areas of the brain.
Other potential risk factors
Other potential risk factors for schizophrenia include a drop in childhood IQ scores, having OCD, being left-handed, having an older father, or the presence of epilepsy in one’s family history 4.
- Schizophrenia: A Review
- What Causes Schizophrenia?
- Toxoplasmosis Parasite May Trigger Schizophrenia And Bipolar Disorders
- Schizophrenia Risk Factors
The information provided on schizophrenic.com is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her health professional(s). This information is solely for informational and educational purposes. The publication and maintenance of this site does not constitute the practice of any type of medicine, and this information does not replace the advice of your physician or other health care provider. Neither the owners or employees of schizophrenic.com nor the author(s) of site content take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading this site. Always speak with your primary health care provider before engaging in any form of self treatment. Please see our Legal Statement for further information.