Gu Xifeng seemed to not know how to define whether it was serious or not. He hesitated for a moment before saying, "He has multiple personalities. As for how many he has, I and the other doctors have yet to come to a conclusion."
Su Bei's mouth fell open slightly. She was indeed surprised by this.
Having multiple personalities was a psychological disorder. It was a disease where there were personality characteristics of two or more 'characters'.
These different 'characters' each had their own habits, way of thinking, living environment, and understanding of themselves. They would take turns to dominate a person's actions. It was as if there were several souls in the same body.
The emergence of multiple personalities was mostly related to the abuse the person suffered when they were young.