The precise cause of most Psychological disorders is not known, but the broad forces that shape them are biological, psychological, social, and cultural. A stressful life event, such as the diagnosis of cancer, may have a psychological effect later. There is some evidence of genetic factors involved with some types of Psychological disorders,
and a vulnerability to certain disorders can be inherited. Some mental disorders are the result of infections such as measles, encephalitis, streptococcal infections, or chronic meningitis.
Psychological Disorder are usually treatable, and early detection is very helpful in the treatment process.