Mayo Clinic Health Manager
Get free personalized health guidance for you and your family.
Get StartedRisk factors
By Mayo Clinic staffAlthough the precise cause of personality disorders isn't known, researchers have identified certain factors that seem to increase the risk of developing or triggering personality disorders, including:
- A family history of personality disorders or other mental illness
- Verbal, physical or sexual abuse during childhood
- An unstable or chaotic family life during childhood
- Being diagnosed with childhood conduct disorder
- Loss of parents through death or divorce during childhood
Personality disorders are common worldwide, affecting about 10 to 13 percent of people at some point during their life. Personality disorders often begin in childhood and last through adulthood. There's some reluctance to diagnose personality disorders in a child, though, because the patterns of behavior and thinking could simply reflect adolescent experimentation or temporary developmental phases.