A personality disorder is an enduring pattern of thinking, feeling and behaving that is different from expectations of the culture, causes distress or problems functioning and lasts over time. The pattern of experience and behavior begins in adolescence or early adulthood and causes distress or problems in functioning. Without treatment, personality disorders can be long lasting.
All kids have worries and doubts. But kids with obsessive-compulsive disorder (OCD) often can’t stop worrying, no matter how much they want to. And those worries frequently compel them to behave in certain ways over and over again.