How is schizophrenia caused

summary

With the continuous progress of society, many diseases that were not understood in the early stage, such as schizophrenia, have been widely recognized by people. So what is the cause of the disease?

How is schizophrenia caused

Reason 1: genetic factors: family examination shows that the number of relatives with schizophrenia is far higher than the average level of ordinary residents. The incidence rate of relatives in the general population is about 2% to siblings, 6% to 12%, and 9% to 16% for children. If the parents are schizophrenic, the prevalence rate of their children is 40%. The closer the blood is, the higher the incidence rate. Twin examination also showed similar results. The prevalence of monozygotic twins was 3 times higher than that of dizygotic twins (only 1.5-2 times higher in neurosis), indicating the role of genetic factors and other pathogenic factors. If only genetic factors play a role, the prevalence of monozygotic twins should be identical.

The second reason: family education environment: no one thinks that there are more schizophrenics who live in a broken family (father divorced, died or ran away) in their childhood, and some people find that the abnormal relationship between parents and children plays a certain role in the onset of schizophrenia. In addition, some people have studied the communication between patients and their parents. They think that there are many disharmonious marriages between these parents. The communication between them and between them and their children often becomes a problem, that is, they can't coordinate well with each other. They think that these children are prone to get sick in the future. 5 this kind of research on "abnormal family communication" is mostly done by psychologists~ It was popular for a period of time in the 1960s. Although studies in the 1970s also recognized this phenomenon, they did not think it was the main reason, but the result of children's own problems.

Reason 3: personality problems: at the beginning of this century, it was believed that many schizophrenics developed on the basis of bad personality before illness, most of them are so-called "schizoid personality". Some foreign experts have followed up 208 cases of schizophrenia for a long time and found that 24% of them belong to morbid schizophrenic personality, 28% to non morbid schizophrenic personality, 13% to morbid but not schizophrenic personality, 4% to other special non morbid personality and 30% to normal personality. The abnormal personality before the disease is fully manifested in adolescence, and it can be similar to the general children before this. Whether personality problem is the cause of the disease is still controversial. It is generally believed that it is not the direct cause.

matters needing attention

Life events (generally refers to the unpleasant events) can cause schizophrenia? In the analysis of this problem, we must make the following points clear: 1) some life events can indeed affect the specific manifestations of symptoms, so we can not determine whether it is the cause F. we must distinguish whether some life events are the cause or the consequence of the disease Only a few life events (such as war and earthquake) can be said not to be the consequence of personal activities. ② one life event has pathogenic effect on one person, but not on another. Generally speaking, life events are considered as a single factor, not schizophrenia.