The abnormality of mental patients mainly includes the following aspects

1. Personality changes, personality becomes different from usual, such as the performance of withdrawn, unwilling to see people, often in a daze, laughing alone, pessimistic, indifferent to people, reduced interest in things, suspicious all day, changeable emotions, hostile to others, anger or nervous fear for no reason, long-term avoidance of social and work, etc.
2. Abnormal behavior, obvious or incomprehensible behavior, bedridden all day, nosy, falling or smashing things without reason, collecting sundries, stolen things, etc.
3. Abnormal speech.